Merge remote-tracking branch 'upstream/develop' into fix/end-of-line-emoji

Signed-off-by: Šimon Brandner <simon.bra.ag@gmail.com>

.eslintignore.errorfiles

@@ -1,16 +0,0 @@
-# autogenerated file: run scripts/generate-eslint-error-ignore-file to update.
-
-src/Markdown.js
-src/Velociraptor.js
-src/components/structures/RoomDirectory.js
-src/components/views/rooms/MemberList.js
-src/ratelimitedfunc.js
-src/utils/DMRoomMap.js
-src/utils/MultiInviter.js
-test/components/structures/MessagePanel-test.js
-test/components/views/dialogs/InteractiveAuthDialog-test.js
-test/mock-clock.js
-src/component-index.js
-test/end-to-end-tests/node_modules/
-test/end-to-end-tests/element/
-test/end-to-end-tests/synapse/

.eslintrc.js

@@ -1,7 +1,9 @@
 module.exports = {
-    extends: ["matrix-org", "matrix-org/react-legacy"],
+    plugins: ["matrix-org"],
-    parser: "babel-eslint",
+    extends: [
-
+        "plugin:matrix-org/babel",
+        "plugin:matrix-org/react",
+    ],
     env: {
         browser: true,
         node: true,
@@ -15,22 +17,69 @@ module.exports = {
         "prefer-promise-reject-errors": "off",
         "no-async-promise-executor": "off",
         "quotes": "off",
-        "indent": "off",
+        "no-extra-boolean-cast": "off",
-    },
 
+        // Bind or arrow functions in props causes performance issues (but we
+        // currently use them in some places).
+        // It's disabled here, but we should using it sparingly.
+        "react/jsx-no-bind": "off",
+        "react/jsx-key": ["error"],
+
+        "no-restricted-properties": [
+            "error",
+            ...buildRestrictedPropertiesOptions(
+                ["window.innerHeight", "window.innerWidth", "window.visualViewport"],
+                "Use UIStore to access window dimensions instead.",
+            ),
+            ...buildRestrictedPropertiesOptions(
+                ["*.mxcUrlToHttp", "*.getHttpUriForMxc"],
+                "Use Media helper instead to centralise access for customisation.",
+            ),
+        ],
+    },
     overrides: [{
-        "files": ["src/**/*.{ts,tsx}"],
+        files: [
-        "extends": ["matrix-org/ts"],
+            "src/**/*.{ts,tsx}",
-        "rules": {
+            "test/**/*.{ts,tsx}",
+        ],
+        extends: [
+            "plugin:matrix-org/typescript",
+            "plugin:matrix-org/react",
+        ],
+        rules: {
+            // Things we do that break the ideal style
+            "prefer-promise-reject-errors": "off",
+            "quotes": "off",
+            "no-extra-boolean-cast": "off",
+
+            // Remove Babel things manually due to override limitations
+            "@babel/no-invalid-this": ["off"],
+
             // We're okay being explicit at the moment
             "@typescript-eslint/no-empty-interface": "off",
             // We disable this while we're transitioning
             "@typescript-eslint/no-explicit-any": "off",
             // We'd rather not do this but we do
             "@typescript-eslint/ban-ts-comment": "off",
-
-            "quotes": "off",
-            "no-extra-boolean-cast": "off",
         },
     }],
+    settings: {
+        react: {
+            version: "detect",
+        }
+    }
 };
+
+function buildRestrictedPropertiesOptions(properties, message) {
+    return properties.map(prop => {
+        let [object, property] = prop.split(".");
+        if (object === "*") {
+            object = undefined;
+        }
+        return {
+            object,
+            property,
+            message,
+        };
+    });
+}

.flowconfig

@@ -1,6 +0,0 @@
-[include]
-src/**/*.js
-test/**/*.js
-
-[ignore]
-node_modules/

.github/CODEOWNERS

@@ -0,0 +1 @@
+* @matrix-org/element-web

.github/PULL_REQUEST_TEMPLATE.md

@@ -0,0 +1,15 @@
+<!-- Please read https://github.com/matrix-org/matrix-js-sdk/blob/develop/CONTRIBUTING.md before submitting your pull request -->
+
+<!-- Include a Sign-Off as described in https://github.com/matrix-org/matrix-js-sdk/blob/develop/CONTRIBUTING.md#sign-off -->
+
+<!-- To specify text for the changelog entry (otherwise the PR title will be used):
+Notes:
+
+Changes in this project generate changelog entries in element-web by default.
+To suppress this:
+
+element-web notes: none
+
+...or to specify different notes:
+element-web notes: <notes>
+-->

.github/workflows/develop.yml

@@ -0,0 +1,46 @@
+name: Develop
+on:
+    # These tests won't work for non-develop branches at the moment as they
+    # won't pull in the right versions of other repos, so they're only enabled
+    # on develop.
+    push:
+        branches: [develop]
+    pull_request:
+        branches: [develop]
+jobs:
+    end-to-end:
+        runs-on: ubuntu-latest
+        env: 
+          PR_NUMBER: ${{github.event.number}}
+        container: vectorim/element-web-ci-e2etests-env:latest
+        steps:
+            - name: Checkout code
+              uses: actions/checkout@v2
+            - name: Prepare End-to-End tests
+              run: ./scripts/ci/prepare-end-to-end-tests.sh
+            - name: Run End-to-End tests
+              run: ./scripts/ci/run-end-to-end-tests.sh
+            - name: Archive logs
+              uses: actions/upload-artifact@v2
+              if: ${{ always() }}
+              with:
+                path: |
+                    test/end-to-end-tests/logs/**/*
+                    test/end-to-end-tests/synapse/installations/consent/homeserver.log
+                retention-days: 14
+            - name: Download previous benchmark data
+              uses: actions/cache@v1
+              with:
+                path: ./cache
+                key: ${{ runner.os }}-benchmark
+            - name: Store benchmark result
+              uses: matrix-org/github-action-benchmark@jsperfentry-1
+              with:
+                tool: 'jsperformanceentry'
+                output-file-path: test/end-to-end-tests/performance-entries.json
+                fail-on-alert: false
+                comment-on-alert: false
+                # Only temporary to monitor where failures occur
+                alert-comment-cc-users: '@gsouquet'
+                github-token: ${{ secrets.DEPLOY_GH_PAGES }}
+                auto-push: ${{ github.ref == 'refs/heads/develop' }}

.github/workflows/layered-build.yaml

@@ -0,0 +1,31 @@
+name: Layered Preview Build
+on:
+    pull_request:
+        branches: [develop]
+jobs:
+    build:
+        runs-on: ubuntu-latest
+        steps:
+            - uses: actions/checkout@v2
+            - name: Build
+              run: scripts/ci/layered.sh && cd element-web && cp element.io/develop/config.json config.json && CI_PACKAGE=true yarn build
+            - name: Upload Artifact
+              uses: actions/upload-artifact@v2
+              with:
+                  name: previewbuild
+                  path: element-web/webapp
+                  # We'll only use this in a triggered job, then we're done with it
+                  retention-days: 1
+            - uses: actions/github-script@v3.1.0
+              with:
+                script: |
+                    var fs = require('fs');
+                    fs.writeFileSync('${{github.workspace}}/pr.json', JSON.stringify(context.payload.pull_request));
+            - name: Upload PR Info
+              uses: actions/upload-artifact@v2
+              with:
+                  name: pr.json
+                  path: pr.json
+                  # We'll only use this in a triggered job, then we're done with it
+                  retention-days: 1
+

.github/workflows/netlify.yaml

@@ -0,0 +1,80 @@
+name: Upload Preview Build to Netlify
+on:
+    workflow_run:
+        workflows: ["Layered Preview Build"]
+        types:
+            - completed
+jobs:
+    build:
+        runs-on: ubuntu-latest
+        if: >
+            ${{ github.event.workflow_run.conclusion == 'success' }}
+        steps:
+            # There's a 'download artifact' action but it hasn't been updated for the
+            # workflow_run action (https://github.com/actions/download-artifact/issues/60)
+            # so instead we get this mess:
+            - name: 'Download artifact'
+              uses: actions/github-script@v3.1.0
+              with:
+                script: |
+                  var artifacts = await github.actions.listWorkflowRunArtifacts({
+                     owner: context.repo.owner,
+                     repo: context.repo.repo,
+                     run_id: ${{github.event.workflow_run.id }},
+                  });
+                  var matchArtifact = artifacts.data.artifacts.filter((artifact) => {
+                    return artifact.name == "previewbuild"
+                  })[0];
+                  var download = await github.actions.downloadArtifact({
+                     owner: context.repo.owner,
+                     repo: context.repo.repo,
+                     artifact_id: matchArtifact.id,
+                     archive_format: 'zip',
+                  });
+                  var fs = require('fs');
+                  fs.writeFileSync('${{github.workspace}}/previewbuild.zip', Buffer.from(download.data));
+
+                  var prInfoArtifact = artifacts.data.artifacts.filter((artifact) => {
+                    return artifact.name == "pr.json"
+                  })[0];
+                  var download = await github.actions.downloadArtifact({
+                     owner: context.repo.owner,
+                     repo: context.repo.repo,
+                     artifact_id: prInfoArtifact.id,
+                     archive_format: 'zip',
+                  });
+                  var fs = require('fs');
+                  fs.writeFileSync('${{github.workspace}}/pr.json.zip', Buffer.from(download.data));
+            - name: Extract Artifacts
+              run: unzip -d webapp previewbuild.zip && rm previewbuild.zip && unzip pr.json.zip && rm pr.json.zip
+            - name: 'Read PR Info'
+              id: readctx
+              uses: actions/github-script@v3.1.0
+              with:
+                script: |
+                    var fs = require('fs');
+                    var pr = JSON.parse(fs.readFileSync('${{github.workspace}}/pr.json'));
+                    console.log(`::set-output name=prnumber::${pr.number}`);
+            - name: Deploy to Netlify
+              id: netlify
+              uses: nwtgck/actions-netlify@v1.2
+              with:
+                  publish-dir: webapp
+                  deploy-message: "Deploy from GitHub Actions"
+                  # These don't work because we're in workflow_run
+                  enable-pull-request-comment: false
+                  enable-commit-comment: false
+              env:
+                  NETLIFY_AUTH_TOKEN: ${{ secrets.NETLIFY_AUTH_TOKEN }}
+                  NETLIFY_SITE_ID: ${{ secrets.NETLIFY_SITE_ID }}
+              timeout-minutes: 1
+            - name: Edit PR Description
+              uses: velas/pr-description@v1.0.1
+              env:
+                  GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+              with:
+                  pull-request-number: ${{ steps.readctx.outputs.prnumber }}
+                  description-message: |
+                      Preview: ${{ steps.netlify.outputs.deploy-url }}
+                      ⚠️ Do you trust the author of this PR? Maybe this build will steal your keys or give you malware. Exercise caution. Use test accounts.
+

.github/workflows/preview_changelog.yaml

@@ -0,0 +1,12 @@
+name: Preview Changelog
+on:
+  pull_request_target:
+    types: [ opened, edited, labeled ]
+jobs:
+    changelog:
+        runs-on: ubuntu-latest
+        steps:
+            - name: Preview Changelog
+              uses: matrix-org/allchange@main
+              with:
+                  ghToken: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/typecheck.yaml

@@ -0,0 +1,24 @@
+name: Type Check
+on:
+    pull_request:
+        branches: [develop]
+jobs:
+    build:
+        runs-on: ubuntu-latest
+        steps:
+            - uses: actions/checkout@v2
+            - uses: c-hive/gha-yarn-cache@v2
+            - name: Install Deps
+              run: "./scripts/ci/install-deps.sh --ignore-scripts"
+            - name: Typecheck
+              run: "yarn run lint:types"
+            - name: Switch js-sdk to release mode
+              run: |
+                  scripts/ci/js-sdk-to-release.js
+                  cd node_modules/matrix-js-sdk
+                  yarn install
+                  yarn run build:compile
+                  yarn run build:types
+            - name: Typecheck (release mode)
+              run: "yarn run lint:types"
+

.gitignore

@@ -2,6 +2,7 @@
 /*.log
 package-lock.json
 
+/coverage
 /node_modules
 /lib
 
@@ -14,3 +15,6 @@ package-lock.json
 
 .DS_Store
 *.tmp
+
+.vscode
+.vscode/

.node-version

@@ -0,0 +1 @@
+14

.stylelintrc.js

@@ -17,6 +17,7 @@ module.exports = {
         "selector-list-comma-newline-after": null,
         "at-rule-no-unknown": null,
         "no-descending-specificity": null,
+        "no-empty-first-line": true,
         "scss/at-rule-no-unknown": [true, {
             // https://github.com/vector-im/element-web/issues/10544
             "ignoreAtRules": ["define-mixin"],

CONTRIBUTING.md

@@ -1,4 +1,4 @@
 Contributing code to The React SDK
 ==================================
 
-matrix-react-sdk follows the same pattern as https://github.com/matrix-org/matrix-js-sdk/blob/master/CONTRIBUTING.rst
+matrix-react-sdk follows the same pattern as https://github.com/matrix-org/matrix-js-sdk/blob/master/CONTRIBUTING.md

README.md

@@ -28,13 +28,13 @@ Platform Targets:
  * WebRTC features (VoIP and Video calling) are only available in Chrome & Firefox.
  * Mobile Web is not currently a target platform - instead please use the native
    iOS (https://github.com/matrix-org/matrix-ios-kit) and Android
-   (https://github.com/matrix-org/matrix-android-sdk) SDKs.
+   (https://github.com/matrix-org/matrix-android-sdk2) SDKs.
 
 All code lands on the `develop` branch - `master` is only used for stable releases.
 **Please file PRs against `develop`!!**
 
 Please follow the standard Matrix contributor's guide:
-https://github.com/matrix-org/matrix-js-sdk/blob/develop/CONTRIBUTING.rst
+https://github.com/matrix-org/matrix-js-sdk/blob/develop/CONTRIBUTING.md
 
 Please follow the Matrix JS/React code style as per:
 https://github.com/matrix-org/matrix-react-sdk/blob/master/code_style.md

__mocks__/FontManager.js

@@ -0,0 +1,6 @@
+// Stub out FontManager for tests as it doesn't validate anything we don't already know given
+// our fixed test environment and it requires the installation of node-canvas.
+
+module.exports = {
+    fixupColorFonts: () => Promise.resolve(),
+};

__mocks__/empty.js

@@ -0,0 +1,2 @@
+// Yes, this is empty.
+module.exports = {};

__mocks__/workerMock.js

@@ -0,0 +1 @@
+module.exports = jest.fn();

babel.config.js

@@ -10,7 +10,6 @@ module.exports = {
             ],
         }],
         "@babel/preset-typescript",
-        "@babel/preset-flow",
         "@babel/preset-react",
     ],
     "plugins": [
@@ -19,7 +18,6 @@ module.exports = {
         "@babel/plugin-proposal-numeric-separator",
         "@babel/plugin-proposal-class-properties",
         "@babel/plugin-proposal-object-rest-spread",
-        "@babel/plugin-transform-flow-comments",
         "@babel/plugin-syntax-dynamic-import",
         "@babel/plugin-transform-runtime",
     ],

package.json

@@ -1,6 +1,6 @@
 {
   "name": "matrix-react-sdk",
-  "version": "3.18.0",
+  "version": "3.29.0",
   "description": "SDK for matrix.org using React",
   "author": "matrix.org",
   "repository": {
@@ -23,9 +23,7 @@
     "package.json"
   ],
   "bin": {
-    "reskindex": "scripts/reskindex.js",
+    "reskindex": "scripts/reskindex.js"
-    "matrix-gen-i18n": "scripts/gen-i18n.js",
-    "matrix-prune-i18n": "scripts/prune-i18n.js"
   },
   "main": "./src/index.js",
   "matrix_src_main": "./src/index.js",
@@ -35,7 +33,7 @@
     "prepublishOnly": "yarn build",
     "i18n": "matrix-gen-i18n",
     "prunei18n": "matrix-prune-i18n",
-    "diff-i18n": "cp src/i18n/strings/en_EN.json src/i18n/strings/en_EN_orig.json && ./scripts/gen-i18n.js && node scripts/compare-file.js src/i18n/strings/en_EN_orig.json src/i18n/strings/en_EN.json",
+    "diff-i18n": "cp src/i18n/strings/en_EN.json src/i18n/strings/en_EN_orig.json && matrix-gen-i18n && matrix-compare-i18n-files src/i18n/strings/en_EN_orig.json src/i18n/strings/en_EN.json",
     "reskindex": "node scripts/reskindex.js -h header",
     "reskindex:watch": "node scripts/reskindex.js -h header -w",
     "rethemendex": "res/css/rethemendex.sh",
@@ -47,26 +45,30 @@
     "start:all": "concurrently --kill-others-on-fail --prefix \"{time} [{name}]\" -n build,reskindex \"yarn start:build\" \"yarn reskindex:watch\"",
     "start:build": "babel src -w -s -d lib --verbose --extensions \".ts,.js\"",
     "lint": "yarn lint:types && yarn lint:js && yarn lint:style",
-    "lint:js": "eslint --max-warnings 0 --ignore-path .eslintignore.errorfiles src test",
+    "lint:js": "eslint --max-warnings 0 src test",
+    "lint:js-fix": "eslint --fix src test",
     "lint:types": "tsc --noEmit --jsx react",
     "lint:style": "stylelint 'res/css/**/*.scss'",
     "test": "jest",
-    "test:e2e": "./test/end-to-end-tests/run.sh --app-url http://localhost:8080"
+    "test:e2e": "./test/end-to-end-tests/run.sh --app-url http://localhost:8080",
+    "coverage": "yarn test --coverage"
   },
   "dependencies": {
     "@babel/runtime": "^7.12.5",
+    "@sentry/browser": "^6.11.0",
+    "@sentry/tracing": "^6.11.0",
     "await-lock": "^2.1.0",
-    "blueimp-canvas-to-blob": "^3.28.0",
+    "blurhash": "^1.1.3",
     "browser-encrypt-attachment": "^0.3.0",
     "browser-request": "^0.3.3",
-    "cheerio": "^1.0.0-rc.5",
+    "cheerio": "^1.0.0-rc.9",
     "classnames": "^2.2.6",
     "commonmark": "^0.29.3",
     "counterpart": "^0.18.6",
     "diff-dom": "^4.2.2",
     "diff-match-patch": "^1.0.5",
-    "emojibase-data": "^5.1.1",
+    "emojibase-data": "^6.2.0",
-    "emojibase-regex": "^4.1.1",
+    "emojibase-regex": "^5.1.3",
     "escape-html": "^1.0.3",
     "file-saver": "^2.0.5",
     "filesize": "6.1.0",
@@ -81,52 +83,56 @@
     "linkifyjs": "^2.1.9",
     "lodash": "^4.17.20",
     "matrix-js-sdk": "github:matrix-org/matrix-js-sdk#develop",
-    "matrix-widget-api": "^0.1.0-beta.13",
+    "matrix-widget-api": "^0.1.0-beta.16",
     "minimist": "^1.2.5",
     "opus-recorder": "^8.0.3",
     "pako": "^2.0.3",
     "parse5": "^6.0.1",
     "png-chunks-extract": "^1.0.0",
+    "posthog-js": "1.12.2",
     "prop-types": "^15.7.2",
     "qrcode": "^1.4.4",
-    "qs": "^6.9.6",
     "re-resizable": "^6.9.0",
-    "react": "^16.14.0",
+    "react": "^17.0.2",
-    "react-beautiful-dnd": "^4.0.1",
+    "react-beautiful-dnd": "^13.1.0",
-    "react-dom": "^16.14.0",
+    "react-blurhash": "^0.1.3",
+    "react-dom": "^17.0.2",
     "react-focus-lock": "^2.5.0",
     "react-transition-group": "^4.4.1",
     "resize-observer-polyfill": "^1.5.1",
     "rfc4648": "^1.4.0",
-    "sanitize-html": "github:apostrophecms/sanitize-html#3c7f93f2058f696f5359e3e58d464161647226db",
+    "sanitize-html": "^2.3.2",
     "tar-js": "^0.3.0",
-    "text-encoding-utf-8": "^1.0.2",
     "url": "^0.11.0",
-    "velocity-animate": "^2.0.6",
     "what-input": "^5.2.10",
     "zxcvbn": "^4.4.2"
   },
   "devDependencies": {
     "@babel/cli": "^7.12.10",
     "@babel/core": "^7.12.10",
+    "@babel/eslint-parser": "^7.12.10",
+    "@babel/eslint-plugin": "^7.12.10",
     "@babel/parser": "^7.12.11",
     "@babel/plugin-proposal-class-properties": "^7.12.1",
     "@babel/plugin-proposal-decorators": "^7.12.12",
     "@babel/plugin-proposal-export-default-from": "^7.12.1",
     "@babel/plugin-proposal-numeric-separator": "^7.12.7",
     "@babel/plugin-proposal-object-rest-spread": "^7.12.1",
-    "@babel/plugin-transform-flow-comments": "^7.12.1",
     "@babel/plugin-transform-runtime": "^7.12.10",
     "@babel/preset-env": "^7.12.11",
-    "@babel/preset-flow": "^7.12.1",
     "@babel/preset-react": "^7.12.10",
     "@babel/preset-typescript": "^7.12.7",
     "@babel/register": "^7.12.10",
     "@babel/traverse": "^7.12.12",
+    "@matrix-org/olm": "https://gitlab.matrix.org/api/v4/projects/27/packages/npm/@matrix-org/olm/-/@matrix-org/olm-3.2.3.tgz",
     "@peculiar/webcrypto": "^1.1.4",
+    "@sentry/types": "^6.10.0",
     "@sinonjs/fake-timers": "^7.0.2",
     "@types/classnames": "^2.2.11",
+    "@types/commonmark": "^0.27.4",
     "@types/counterpart": "^0.18.1",
+    "@types/css-font-loading-module": "^0.0.6",
+    "@types/diff-match-patch": "^1.0.32",
     "@types/flux": "^3.1.9",
     "@types/jest": "^26.0.20",
     "@types/linkifyjs": "^2.1.3",
@@ -134,24 +140,25 @@
     "@types/modernizr": "^3.5.3",
     "@types/node": "^14.14.22",
     "@types/pako": "^1.0.1",
+    "@types/parse5": "^6.0.0",
     "@types/qrcode": "^1.3.5",
-    "@types/react": "^16.9",
+    "@types/react": "^17.0.2",
-    "@types/react-dom": "^16.9.10",
+    "@types/react-beautiful-dnd": "^13.0.0",
+    "@types/react-dom": "^17.0.2",
     "@types/react-transition-group": "^4.4.0",
-    "@types/sanitize-html": "^1.27.0",
+    "@types/sanitize-html": "^2.3.1",
     "@types/zxcvbn": "^4.4.0",
-    "@typescript-eslint/eslint-plugin": "^4.14.0",
+    "@typescript-eslint/eslint-plugin": "^4.17.0",
-    "@typescript-eslint/parser": "^4.14.0",
+    "@typescript-eslint/parser": "^4.17.0",
-    "babel-eslint": "^10.1.0",
+    "@wojtekmaj/enzyme-adapter-react-17": "^0.6.1",
+    "allchange": "^1.0.3",
     "babel-jest": "^26.6.3",
     "chokidar": "^3.5.1",
     "concurrently": "^5.3.0",
     "enzyme": "^3.11.0",
-    "enzyme-adapter-react-16": "^1.15.6",
     "eslint": "7.18.0",
-    "eslint-config-matrix-org": "^0.2.0",
+    "eslint-config-google": "^0.14.0",
-    "eslint-plugin-babel": "^5.3.1",
+    "eslint-plugin-matrix-org": "github:matrix-org/eslint-plugin-matrix-org#2306b3d4da4eba908b256014b979f1d3d43d2945",
-    "eslint-plugin-flowtype": "^5.2.0",
     "eslint-plugin-react": "^7.22.0",
     "eslint-plugin-react-hooks": "^4.2.0",
     "glob": "^7.1.6",
@@ -160,23 +167,21 @@
     "jest-environment-jsdom-sixteen": "^1.0.3",
     "jest-fetch-mock": "^3.0.3",
     "matrix-mock-request": "^1.2.3",
-    "matrix-react-test-utils": "^0.2.2",
+    "matrix-react-test-utils": "^0.2.3",
-    "olm": "https://packages.matrix.org/npm/olm/olm-3.2.1.tgz",
+    "matrix-web-i18n": "github:matrix-org/matrix-web-i18n",
-    "react-test-renderer": "^16.14.0",
+    "react-test-renderer": "^17.0.2",
     "rimraf": "^3.0.2",
+    "rrweb-snapshot": "1.1.7",
     "stylelint": "^13.9.0",
     "stylelint-config-standard": "^20.0.0",
     "stylelint-scss": "^3.18.0",
     "typescript": "^4.1.3",
     "walk": "^2.3.14"
   },
-  "resolutions": {
-    "**/@types/react": "^16.14"
-  },
   "jest": {
     "testEnvironment": "./__test-utils__/environment.js",
     "testMatch": [
-      "<rootDir>/test/**/*-test.[jt]s"
+      "<rootDir>/test/**/*-test.[jt]s?(x)"
     ],
     "setupFiles": [
       "jest-canvas-mock"
@@ -186,10 +191,21 @@
     ],
     "moduleNameMapper": {
       "\\.(gif|png|svg|ttf|woff2)$": "<rootDir>/__mocks__/imageMock.js",
-      "\\$webapp/i18n/languages.json": "<rootDir>/__mocks__/languages.json"
+      "\\$webapp/i18n/languages.json": "<rootDir>/__mocks__/languages.json",
+      "decoderWorker\\.min\\.js": "<rootDir>/__mocks__/empty.js",
+      "decoderWorker\\.min\\.wasm": "<rootDir>/__mocks__/empty.js",
+      "waveWorker\\.min\\.js": "<rootDir>/__mocks__/empty.js",
+      "workers/(.+)\\.worker\\.ts": "<rootDir>/__mocks__/workerMock.js",
+      "RecorderWorklet": "<rootDir>/__mocks__/empty.js"
     },
     "transformIgnorePatterns": [
       "/node_modules/(?!matrix-js-sdk).+$"
+    ],
+    "collectCoverageFrom": [
+      "<rootDir>/src/**/*.{js,ts,tsx}"
+    ],
+    "coverageReporters": [
+      "text"
     ]
   }
 }

release_config.yaml

@@ -0,0 +1,4 @@
+subprojects:
+    matrix-js-sdk:
+        includeByDefault: false
+

res/css/_animations.scss

@@ -0,0 +1,55 @@
+/*
+Copyright 2021 The Matrix.org Foundation C.I.C.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+/**
+ * React Transition Group animations are prefixed with 'mx_rtg--' so that we
+ * know they should not be used anywhere outside of React Transition Groups.
+*/
+
+.mx_rtg--fade-enter {
+    opacity: 0;
+}
+.mx_rtg--fade-enter-active {
+    opacity: 1;
+    transition: opacity 300ms ease;
+}
+.mx_rtg--fade-exit {
+    opacity: 1;
+}
+.mx_rtg--fade-exit-active {
+    opacity: 0;
+    transition: opacity 300ms ease;
+}
+
+
+@keyframes mx--anim-pulse {
+    0% { opacity: 1; }
+    50% { opacity: 0.7; }
+    100% { opacity: 1; }
+}
+
+
+@media (prefers-reduced-motion) {
+    @keyframes mx--anim-pulse {
+        // Override all keyframes in reduced-motion
+    }
+    .mx_rtg--fade-enter-active {
+        transition: none;
+    }
+    .mx_rtg--fade-exit-active {
+        transition: none;
+    }
+}

res/css/_common.scss

@@ -18,6 +18,7 @@ limitations under the License.
 
 @import "./_font-sizes.scss";
 @import "./_font-weights.scss";
+@import "./_animations.scss";
 
 $hover-transition: 0.08s cubic-bezier(.46, .03, .52, .96); // quadratic
 
@@ -28,6 +29,16 @@ $MessageTimestamp_width_hover: calc($MessageTimestamp_width - 2 * $EventTile_e2e
 
 :root {
     font-size: 10px;
+
+    --transition-short: .1s;
+    --transition-standard: .3s;
+}
+
+@media (prefers-reduced-motion) {
+    :root {
+        --transition-short: 0;
+        --transition-standard: 0;
+    }
 }
 
 html {
@@ -35,13 +46,15 @@ html {
        N.B. Breaks things when we have legitimate horizontal overscroll */
     height: 100%;
     overflow: hidden;
+    // Stop similar overscroll bounce in Firefox Nightly for macOS
+    overscroll-behavior: none;
 }
 
 body {
     font-family: $font-family;
     font-size: $font-15px;
-    background-color: $primary-bg-color;
+    background-color: $background;
-    color: $primary-fg-color;
+    color: $primary-content;
     border: 0px;
     margin: 0px;
 
@@ -76,7 +89,7 @@ b {
 }
 
 h2 {
-    color: $primary-fg-color;
+    color: $primary-content;
     font-weight: 400;
     font-size: $font-18px;
     margin-top: 16px;
@@ -92,8 +105,8 @@ a:visited {
 input[type=text],
 input[type=search],
 input[type=password] {
+    font-family: inherit;
     padding: 9px;
-    font-family: $font-family;
     font-size: $font-14px;
     font-weight: 600;
     min-width: 0;
@@ -129,13 +142,12 @@ textarea::placeholder {
 
 input[type=text], input[type=password], textarea {
     background-color: transparent;
-    color: $primary-fg-color;
+    color: $primary-content;
 }
 
 /* Required by Firefox */
 textarea {
-    font-family: $font-family;
+    color: $primary-content;
-    color: $primary-fg-color;
 }
 
 input[type=text]:focus, input[type=password]:focus, textarea:focus {
@@ -156,12 +168,12 @@ input[type=text]:focus, input[type=password]:focus, textarea:focus {
 // it has the appearance of a text box so the controls
 // appear to be part of the input
 
-.mx_Dialog, .mx_MatrixChat {
+.mx_Dialog, .mx_MatrixChat_wrapper {
     .mx_textinput > input[type=text],
     .mx_textinput > input[type=search] {
         border: none;
         flex: 1;
-        color: $primary-fg-color;
+        color: $primary-content;
     }
 
     :not(.mx_textinput):not(.mx_Field):not(.mx_no_textinput) > input[type=text],
@@ -172,7 +184,7 @@ input[type=text]:focus, input[type=password]:focus, textarea:focus {
         background-color: transparent;
         color: $input-darker-fg-color;
         border-radius: 4px;
-        border: 1px solid rgba($primary-fg-color, .1);
+        border: 1px solid rgba($primary-content, .1);
         // these things should probably not be defined globally
         margin: 9px;
     }
@@ -197,7 +209,7 @@ input[type=text]:focus, input[type=password]:focus, textarea:focus {
     :not(.mx_textinput):not(.mx_Field):not(.mx_no_textinput) > input[type=search],
     .mx_textinput {
         color: $input-darker-fg-color;
-        background-color: $primary-bg-color;
+        background-color: $background;
         border: none;
     }
 }
@@ -259,7 +271,7 @@ input[type=text]:focus, input[type=password]:focus, textarea:focus {
 }
 
 .mx_Dialog {
-    background-color: $primary-bg-color;
+    background-color: $background;
     color: $light-fg-color;
     z-index: 4012;
     font-weight: 300;
@@ -279,6 +291,7 @@ input[type=text]:focus, input[type=password]:focus, textarea:focus {
 
 .mx_Dialog_staticWrapper .mx_Dialog {
     z-index: 4010;
+    contain: content;
 }
 
 .mx_Dialog_background {
@@ -366,7 +379,7 @@ input[type=text]:focus, input[type=password]:focus, textarea:focus {
 .mx_Dialog_content {
     margin: 24px 0 68px;
     font-size: $font-14px;
-    color: $primary-fg-color;
+    color: $primary-content;
     word-wrap: break-word;
 }
 
@@ -475,8 +488,8 @@ input[type=text]:focus, input[type=password]:focus, textarea:focus {
     border-radius: 3px;
     border: 1px solid $input-border-color;
     padding: 9px;
-    color: $primary-fg-color;
+    color: $primary-content;
-    background-color: $primary-bg-color;
+    background-color: $background;
 }
 
 .mx_textButton {

res/css/_components.scss

@@ -17,6 +17,7 @@
 @import "./structures/_LeftPanelWidget.scss";
 @import "./structures/_MainSplit.scss";
 @import "./structures/_MatrixChat.scss";
+@import "./structures/_BackdropPanel.scss";
 @import "./structures/_MyGroups.scss";
 @import "./structures/_NonUrgentToastContainer.scss";
 @import "./structures/_NotificationPanel.scss";
@@ -27,8 +28,8 @@
 @import "./structures/_RoomView.scss";
 @import "./structures/_ScrollPanel.scss";
 @import "./structures/_SearchBox.scss";
+@import "./structures/_SpaceHierarchy.scss";
 @import "./structures/_SpacePanel.scss";
-@import "./structures/_SpaceRoomDirectory.scss";
 @import "./structures/_SpaceRoomView.scss";
 @import "./structures/_TabbedView.scss";
 @import "./structures/_ToastContainer.scss";
@@ -37,6 +38,11 @@
 @import "./structures/_ViewSource.scss";
 @import "./structures/auth/_CompleteSecurity.scss";
 @import "./structures/auth/_Login.scss";
+@import "./views/audio_messages/_AudioPlayer.scss";
+@import "./views/audio_messages/_PlayPauseButton.scss";
+@import "./views/audio_messages/_PlaybackContainer.scss";
+@import "./views/audio_messages/_SeekBar.scss";
+@import "./views/audio_messages/_Waveform.scss";
 @import "./views/auth/_AuthBody.scss";
 @import "./views/auth/_AuthButtons.scss";
 @import "./views/auth/_AuthFooter.scss";
@@ -52,8 +58,8 @@
 @import "./views/avatars/_BaseAvatar.scss";
 @import "./views/avatars/_DecoratedRoomAvatar.scss";
 @import "./views/avatars/_MemberStatusMessageAvatar.scss";
-@import "./views/avatars/_PulsedAvatar.scss";
 @import "./views/avatars/_WidgetAvatar.scss";
+@import "./views/beta/_BetaCard.scss";
 @import "./views/context_menus/_CallContextMenu.scss";
 @import "./views/context_menus/_IconizedContextMenu.scss";
 @import "./views/context_menus/_MessageContextMenu.scss";
@@ -70,15 +76,22 @@
 @import "./views/dialogs/_CreateCommunityPrototypeDialog.scss";
 @import "./views/dialogs/_CreateGroupDialog.scss";
 @import "./views/dialogs/_CreateRoomDialog.scss";
+@import "./views/dialogs/_CreateSpaceFromCommunityDialog.scss";
+@import "./views/dialogs/_CreateSubspaceDialog.scss";
 @import "./views/dialogs/_DeactivateAccountDialog.scss";
 @import "./views/dialogs/_DevtoolsDialog.scss";
 @import "./views/dialogs/_EditCommunityPrototypeDialog.scss";
 @import "./views/dialogs/_FeedbackDialog.scss";
+@import "./views/dialogs/_ForwardDialog.scss";
+@import "./views/dialogs/_GenericFeatureFeedbackDialog.scss";
 @import "./views/dialogs/_GroupAddressPicker.scss";
 @import "./views/dialogs/_HostSignupDialog.scss";
 @import "./views/dialogs/_IncomingSasDialog.scss";
 @import "./views/dialogs/_InviteDialog.scss";
+@import "./views/dialogs/_JoinRuleDropdown.scss";
 @import "./views/dialogs/_KeyboardShortcutsDialog.scss";
+@import "./views/dialogs/_LeaveSpaceDialog.scss";
+@import "./views/dialogs/_ManageRestrictedJoinRuleDialog.scss";
 @import "./views/dialogs/_MessageEditHistoryDialog.scss";
 @import "./views/dialogs/_ModalWidgetDialog.scss";
 @import "./views/dialogs/_NewSessionReviewDialog.scss";
@@ -96,6 +109,7 @@
 @import "./views/dialogs/_SpaceSettingsDialog.scss";
 @import "./views/dialogs/_TabbedIntegrationManagerDialog.scss";
 @import "./views/dialogs/_TermsDialog.scss";
+@import "./views/dialogs/_UntrustedDeviceDialog.scss";
 @import "./views/dialogs/_UploadConfirmDialog.scss";
 @import "./views/dialogs/_UserSettingsDialog.scss";
 @import "./views/dialogs/_WidgetCapabilitiesPromptDialog.scss";
@@ -112,14 +126,15 @@
 @import "./views/elements/_AddressTile.scss";
 @import "./views/elements/_DesktopBuildsNotice.scss";
 @import "./views/elements/_DesktopCapturerSourcePicker.scss";
+@import "./views/elements/_DialPadBackspaceButton.scss";
 @import "./views/elements/_DirectorySearchBox.scss";
 @import "./views/elements/_Dropdown.scss";
 @import "./views/elements/_EditableItemList.scss";
 @import "./views/elements/_ErrorBoundary.scss";
 @import "./views/elements/_EventListSummary.scss";
+@import "./views/elements/_EventTilePreview.scss";
 @import "./views/elements/_FacePile.scss";
 @import "./views/elements/_Field.scss";
-@import "./views/elements/_FormButton.scss";
 @import "./views/elements/_ImageView.scss";
 @import "./views/elements/_InfoTooltip.scss";
 @import "./views/elements/_InlineSpinner.scss";
@@ -141,6 +156,7 @@
 @import "./views/elements/_StyledCheckbox.scss";
 @import "./views/elements/_StyledRadioButton.scss";
 @import "./views/elements/_SyntaxHighlight.scss";
+@import "./views/elements/_TagComposer.scss";
 @import "./views/elements/_TextWithTooltip.scss";
 @import "./views/elements/_ToggleSwitch.scss";
 @import "./views/elements/_Tooltip.scss";
@@ -150,17 +166,20 @@
 @import "./views/groups/_GroupPublicityToggle.scss";
 @import "./views/groups/_GroupRoomList.scss";
 @import "./views/groups/_GroupUserSettings.scss";
+@import "./views/messages/_CallEvent.scss";
 @import "./views/messages/_CreateEvent.scss";
 @import "./views/messages/_DateSeparator.scss";
 @import "./views/messages/_EventTileBubble.scss";
 @import "./views/messages/_MEmoteBody.scss";
 @import "./views/messages/_MFileBody.scss";
 @import "./views/messages/_MImageBody.scss";
+@import "./views/messages/_MImageReplyBody.scss";
 @import "./views/messages/_MJitsiWidgetEvent.scss";
 @import "./views/messages/_MNoticeBody.scss";
 @import "./views/messages/_MStickerBody.scss";
 @import "./views/messages/_MTextBody.scss";
 @import "./views/messages/_MVideoBody.scss";
+@import "./views/messages/_MediaBody.scss";
 @import "./views/messages/_MessageActionBar.scss";
 @import "./views/messages/_MessageTimestamp.scss";
 @import "./views/messages/_MjolnirBody.scss";
@@ -175,6 +194,7 @@
 @import "./views/messages/_common_CryptoEvent.scss";
 @import "./views/right_panel/_BaseCard.scss";
 @import "./views/right_panel/_EncryptionInfo.scss";
+@import "./views/right_panel/_PinnedMessagesCard.scss";
 @import "./views/right_panel/_RoomSummaryCard.scss";
 @import "./views/right_panel/_UserInfo.scss";
 @import "./views/right_panel/_VerificationPanel.scss";
@@ -187,10 +207,12 @@
 @import "./views/rooms/_E2EIcon.scss";
 @import "./views/rooms/_EditMessageComposer.scss";
 @import "./views/rooms/_EntityTile.scss";
+@import "./views/rooms/_EventBubbleTile.scss";
 @import "./views/rooms/_EventTile.scss";
 @import "./views/rooms/_GroupLayout.scss";
 @import "./views/rooms/_IRCLayout.scss";
 @import "./views/rooms/_JumpToBottomButton.scss";
+@import "./views/rooms/_LinkPreviewGroup.scss";
 @import "./views/rooms/_LinkPreviewWidget.scss";
 @import "./views/rooms/_MemberInfo.scss";
 @import "./views/rooms/_MemberList.scss";
@@ -199,9 +221,9 @@
 @import "./views/rooms/_NewRoomIntro.scss";
 @import "./views/rooms/_NotificationBadge.scss";
 @import "./views/rooms/_PinnedEventTile.scss";
-@import "./views/rooms/_PinnedEventsPanel.scss";
 @import "./views/rooms/_PresenceLabel.scss";
 @import "./views/rooms/_ReplyPreview.scss";
+@import "./views/rooms/_ReplyTile.scss";
 @import "./views/rooms/_RoomBreadcrumbs.scss";
 @import "./views/rooms/_RoomHeader.scss";
 @import "./views/rooms/_RoomList.scss";
@@ -221,6 +243,7 @@
 @import "./views/settings/_E2eAdvancedPanel.scss";
 @import "./views/settings/_EmailAddresses.scss";
 @import "./views/settings/_IntegrationManager.scss";
+@import "./views/settings/_LayoutSwitcher.scss";
 @import "./views/settings/_Notifications.scss";
 @import "./views/settings/_PhoneNumbers.scss";
 @import "./views/settings/_ProfileSettings.scss";
@@ -236,6 +259,7 @@
 @import "./views/settings/tabs/user/_AppearanceUserSettingsTab.scss";
 @import "./views/settings/tabs/user/_GeneralUserSettingsTab.scss";
 @import "./views/settings/tabs/user/_HelpUserSettingsTab.scss";
+@import "./views/settings/tabs/user/_LabsUserSettingsTab.scss";
 @import "./views/settings/tabs/user/_MjolnirUserSettingsTab.scss";
 @import "./views/settings/tabs/user/_NotificationUserSettingsTab.scss";
 @import "./views/settings/tabs/user/_PreferencesUserSettingsTab.scss";
@@ -246,12 +270,16 @@
 @import "./views/spaces/_SpacePublicShare.scss";
 @import "./views/terms/_InlineTermsAgreement.scss";
 @import "./views/toasts/_AnalyticsToast.scss";
+@import "./views/toasts/_IncomingCallToast.scss";
 @import "./views/toasts/_NonUrgentEchoFailureToast.scss";
 @import "./views/verification/_VerificationShowSas.scss";
-@import "./views/voice_messages/_Waveform.scss";
+@import "./views/voip/CallView/_CallViewButtons.scss";
 @import "./views/voip/_CallContainer.scss";
+@import "./views/voip/_CallPreview.scss";
 @import "./views/voip/_CallView.scss";
 @import "./views/voip/_CallViewForRoom.scss";
+@import "./views/voip/_CallViewHeader.scss";
+@import "./views/voip/_CallViewSidebar.scss";
 @import "./views/voip/_DialPad.scss";
 @import "./views/voip/_DialPadContextMenu.scss";
 @import "./views/voip/_DialPadModal.scss";

res/css/structures/_BackdropPanel.scss

@@ -0,0 +1,37 @@
+/*
+Copyright 2021 New Vector Ltd
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+.mx_BackdropPanel {
+    position: absolute;
+    left: 0;
+    top: 0;
+    height: 100vh;
+    width: 100%;
+    overflow: hidden;
+    filter: blur(var(--lp-background-blur));
+    // Force a new layer for the backdropPanel so it's better hardware supported
+    transform: translateZ(0);
+}
+
+.mx_BackdropPanel--image {
+    position: absolute;
+    top: 0;
+    left: 0;
+    min-height: 100%;
+    z-index: 0;
+    pointer-events: none;
+    overflow: hidden;
+}

res/css/structures/_ContextualMenu.scss

@@ -34,10 +34,11 @@ limitations under the License.
     border-radius: 8px;
     box-shadow: 4px 4px 12px 0 $menu-box-shadow-color;
     background-color: $menu-bg-color;
-    color: $primary-fg-color;
+    color: $primary-content;
     position: absolute;
     font-size: $font-14px;
     z-index: 5001;
+    contain: content;
 }
 
 .mx_ContextualMenu_right {
@@ -115,8 +116,3 @@ limitations under the License.
     border-top: 8px solid $menu-bg-color;
     border-right: 8px solid transparent;
 }
-
-.mx_ContextualMenu_spinner {
-    display: block;
-    margin: 0 auto;
-}

res/css/structures/_CreateRoom.scss

@@ -18,7 +18,7 @@ limitations under the License.
     width: 960px;
     margin-left: auto;
     margin-right: auto;
-    color: $primary-fg-color;
+    color: $primary-content;
 }
 
 .mx_CreateRoom input,

res/css/structures/_FilePanel.scss

@@ -22,7 +22,6 @@ limitations under the License.
 }
 
 .mx_FilePanel .mx_RoomView_messageListWrapper {
-    margin-right: 20px;
     flex-direction: row;
     align-items: center;
     justify-content: center;
@@ -46,9 +45,14 @@ limitations under the License.
 
 /* Overrides for the attachment body tiles */
 
-.mx_FilePanel .mx_EventTile {
+.mx_FilePanel .mx_EventTile:not([data-layout=bubble]) {
     word-break: break-word;
-    margin-top: 32px;
+    margin-top: 10px;
+    padding-top: 0;
+
+    .mx_EventTile_line {
+        padding-left: 0;
+    }
 }
 
 .mx_FilePanel .mx_EventTile .mx_MImageBody {
@@ -119,10 +123,6 @@ limitations under the License.
     padding-left: 0px;
 }
 
-.mx_FilePanel .mx_EventTile:hover .mx_EventTile_line {
-    background-color: $primary-bg-color;
-}
-
 .mx_FilePanel_empty::before {
     mask-image: url('$(res)/img/element-icons/room/files.svg');
 }

res/css/structures/_GroupFilterPanel.scss

@@ -14,10 +14,27 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
+$groupFilterPanelWidth: 56px; // only applies in this file, used for calculations
+
+.mx_GroupFilterPanelContainer {
+    flex-grow: 0;
+    flex-shrink: 0;
+    width: $groupFilterPanelWidth;
+    height: 100%;
+
+    // Create another flexbox so the GroupFilterPanel fills the container
+    display: flex;
+    flex-direction: column;
+
+    // GroupFilterPanel handles its own CSS
+}
+
 .mx_GroupFilterPanel {
-    flex: 1;
+    z-index: 1;
     background-color: $groupFilterPanel-bg-color;
+    flex: 1;
     cursor: pointer;
+    position: relative;
 
     display: flex;
     flex-direction: column;
@@ -56,6 +73,12 @@ limitations under the License.
 .mx_GroupFilterPanel .mx_TagTile {
     // opacity: 0.5;
     position: relative;
+
+    .mx_BetaDot {
+        position: absolute;
+        right: -13px;
+        top: -11px;
+    }
 }
 
 .mx_GroupFilterPanel .mx_TagTile.mx_TagTile_prototype {
@@ -69,13 +92,13 @@ limitations under the License.
 }
 
 .mx_GroupFilterPanel .mx_TagTile.mx_TagTile_selected_prototype {
-    background-color: $primary-bg-color;
+    background-color: $background;
     border-radius: 6px;
 }
 
 .mx_TagTile_selected_prototype {
     .mx_TagTile_homeIcon::before {
-        background-color: $primary-fg-color; // dark-on-light
+        background-color: $primary-content; // dark-on-light
     }
 }
 

res/css/structures/_GroupView.scss

@@ -132,7 +132,7 @@ limitations under the License.
     width: 100%;
     height: 31px;
     overflow: hidden;
-    color: $primary-fg-color;
+    color: $primary-content;
     font-weight: bold;
     font-size: $font-22px;
     padding-left: 19px;
@@ -323,7 +323,7 @@ limitations under the License.
 }
 
 .mx_GroupView_featuredThing .mx_BaseAvatar {
-    /* To prevent misalignment with mx_TintableSvg (in addButton) */
+    /* To prevent misalignment with img (in addButton) */
     vertical-align: initial;
 }
 
@@ -368,6 +368,65 @@ limitations under the License.
     padding: 40px 20px;
 }
 
+.mx_GroupView_spaceUpgradePrompt {
+    padding: 16px 50px;
+    background-color: $header-panel-bg-color;
+    border-radius: 8px;
+    max-width: 632px;
+    font-size: $font-15px;
+    line-height: $font-24px;
+    margin-top: 24px;
+    position: relative;
+
+    > h2 {
+        font-size: inherit;
+        font-weight: $font-semi-bold;
+    }
+
+    > p, h2 {
+        margin: 0;
+    }
+
+    &::before {
+        content: "";
+        position: absolute;
+        height: $font-24px;
+        width: 20px;
+        left: 18px;
+        mask-repeat: no-repeat;
+        mask-position: center;
+        mask-size: contain;
+        mask-image: url('$(res)/img/element-icons/room/room-summary.svg');
+        background-color: $secondary-content;
+    }
+
+    .mx_AccessibleButton_kind_link {
+        padding: 0;
+    }
+
+    .mx_GroupView_spaceUpgradePrompt_close {
+        width: 16px;
+        height: 16px;
+        border-radius: 8px;
+        background-color: $input-darker-bg-color;
+        position: absolute;
+        top: 16px;
+        right: 16px;
+
+        &::before {
+            content: "";
+            position: absolute;
+            width: inherit;
+            height: inherit;
+            mask-repeat: no-repeat;
+            mask-position: center;
+            mask-size: 8px;
+            mask-image: url('$(res)/img/image-view/close.svg');
+            background-color: $secondary-content;
+        }
+    }
+}
+
 .mx_GroupView .mx_MemberInfo .mx_AutoHideScrollbar > :not(.mx_MemberInfo_avatar) {
     padding-left: 16px;
     padding-right: 16px;

res/css/structures/_LeftPanel.scss

@@ -14,30 +14,47 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
-$groupFilterPanelWidth: 56px; // only applies in this file, used for calculations
 $roomListCollapsedWidth: 68px;
 
+.mx_MatrixChat--with-avatar {
+    .mx_LeftPanel,
+    .mx_LeftPanel .mx_LeftPanel_roomListContainer {
+        background-color: transparent;
+    }
+}
+
+.mx_LeftPanel_wrapper {
+    display: flex;
+    max-width: 50%;
+    position: relative;
+
+    // Contain the amount of layers rendered by constraining what actually needs re-layering via css
+    contain: layout paint;
+
+    .mx_LeftPanel_wrapper--user {
+        background-color: $roomlist-bg-color;
+        display: flex;
+        overflow: hidden;
+        position: relative;
+
+        &[data-collapsed] {
+            max-width: $roomListCollapsedWidth;
+        }
+    }
+}
+
+
+
 .mx_LeftPanel {
     background-color: $roomlist-bg-color;
     // TODO decrease this once Spaces launches as it'll no longer need to include the 56px Community Panel
-    min-width: 206px;
-    max-width: 50%;
 
     // Create a row-based flexbox for the GroupFilterPanel and the room list
     display: flex;
-
+    contain: content;
-    .mx_LeftPanel_GroupFilterPanelContainer {
+    position: relative;
-        flex-grow: 0;
+    flex-grow: 1;
-        flex-shrink: 0;
+    overflow: hidden;
-        flex-basis: $groupFilterPanelWidth;
-        height: 100%;
-
-        // Create another flexbox so the GroupFilterPanel fills the container
-        display: flex;
-        flex-direction: column;
-
-        // GroupFilterPanel handles its own CSS
-    }
 
     // Note: The 'room list' in this context is actually everything that isn't the tag
     // panel, such as the menu options, breadcrumbs, filtering, etc
@@ -70,6 +87,7 @@ $roomListCollapsedWidth: 68px;
             // aligned correctly. This is also a row-based flexbox.
             display: flex;
             align-items: center;
+            contain: content;
 
             &.mx_IndicatorScrollbar_leftOverflow {
                 mask-image: linear-gradient(90deg, transparent, black 5%);
@@ -109,6 +127,29 @@ $roomListCollapsedWidth: 68px;
                 }
             }
 
+            .mx_LeftPanel_dialPadButton {
+                width: 32px;
+                height: 32px;
+                border-radius: 8px;
+                background-color: $roomlist-button-bg-color;
+                position: relative;
+                margin-left: 8px;
+
+                &::before {
+                    content: '';
+                    position: absolute;
+                    top: 8px;
+                    left: 8px;
+                    width: 16px;
+                    height: 16px;
+                    mask-image: url('$(res)/img/element-icons/call/dialpad.svg');
+                    mask-position: center;
+                    mask-size: contain;
+                    mask-repeat: no-repeat;
+                    background: $secondary-content;
+                }
+            }
+
             .mx_LeftPanel_exploreButton {
                 width: 32px;
                 height: 32px;
@@ -128,7 +169,7 @@ $roomListCollapsedWidth: 68px;
                     mask-position: center;
                     mask-size: contain;
                     mask-repeat: no-repeat;
-                    background: $secondary-fg-color;
+                    background: $secondary-content;
                 }
 
                 &.mx_LeftPanel_exploreButton_space::before {
@@ -146,6 +187,8 @@ $roomListCollapsedWidth: 68px;
         }
 
         .mx_LeftPanel_roomListWrapper {
+            // Make the y-scrollbar more responsive
+            padding-right: 2px;
             overflow: hidden;
             margin-top: 10px; // so we're not up against the search/filter
             flex: 1 0 0; // needed in Safari to properly set flex-basis
@@ -167,6 +210,7 @@ $roomListCollapsedWidth: 68px;
 
     // These styles override the defaults for the minimized (66px) layout
     &.mx_LeftPanel_minimized {
+        flex-grow: 0;
         min-width: unset;
         width: unset !important;
 
@@ -183,6 +227,12 @@ $roomListCollapsedWidth: 68px;
                 flex-direction: column;
                 justify-content: center;
 
+                .mx_LeftPanel_dialPadButton {
+                    margin-left: 0;
+                    margin-top: 8px;
+                    background-color: transparent;
+                }
+
                 .mx_LeftPanel_exploreButton {
                     margin-left: 0;
                     margin-top: 8px;

res/css/structures/_LeftPanelWidget.scss

@@ -113,7 +113,7 @@ limitations under the License.
 
     &:hover .mx_LeftPanelWidget_resizerHandle {
         opacity: 0.8;
-        background-color: $primary-fg-color;
+        background-color: $primary-content;
     }
 
     .mx_LeftPanelWidget_maximizeButton {

res/css/structures/_MainSplit.scss

@@ -38,7 +38,7 @@ limitations under the License.
         width: 4px !important;
         border-radius: 4px !important;
 
-        background-color: $primary-fg-color;
+        background-color: $primary-content;
         opacity: 0.8;
     }
 }

res/css/structures/_MatrixChat.scss

@@ -29,8 +29,6 @@ limitations under the License.
 .mx_MatrixChat_wrapper {
     display: flex;
 
-    flex-direction: column;
-
     width: 100%;
     height: 100%;
 }
@@ -42,13 +40,12 @@ limitations under the License.
 }
 
 .mx_MatrixChat {
+    position: relative;
     width: 100%;
     height: 100%;
 
     display: flex;
 
-    order: 2;
-
     flex: 1;
     min-height: 0;
 }
@@ -66,8 +63,8 @@ limitations under the License.
 }
 
 /* not the left panel, and not the resize handle, so the roomview/groupview/... */
-.mx_MatrixChat > :not(.mx_LeftPanel):not(.mx_SpacePanel):not(.mx_ResizeHandle) {
+.mx_MatrixChat > :not(.mx_LeftPanel):not(.mx_SpacePanel):not(.mx_ResizeHandle):not(.mx_LeftPanel_wrapper) {
-    background-color: $primary-bg-color;
+    background-color: $background;
 
     flex: 1 1 0;
     min-width: 0;
@@ -94,7 +91,7 @@ limitations under the License.
 
         content: ' ';
 
-        background-color: $primary-fg-color;
+        background-color: $primary-content;
         opacity: 0.8;
     }
 }

res/css/structures/_MyGroups.scss

@@ -17,6 +17,11 @@ limitations under the License.
 .mx_MyGroups {
     display: flex;
     flex-direction: column;
+
+    .mx_BetaCard {
+        margin: 0 72px;
+        max-width: 760px;
+    }
 }
 
 .mx_MyGroups .mx_RoomHeader_simpleHeader {
@@ -30,7 +35,7 @@ limitations under the License.
     flex-wrap: wrap;
 }
 
-.mx_MyGroups > :not(.mx_RoomHeader) {
+.mx_MyGroups > :not(.mx_RoomHeader):not(.mx_BetaCard) {
     max-width: 960px;
     margin: 40px;
 }

res/css/structures/_NotificationPanel.scss

@@ -49,7 +49,7 @@ limitations under the License.
         bottom: 0;
         left: 0;
         right: 0;
-        background-color: $tertiary-fg-color;
+        background-color: $tertiary-content;
         height: 1px;
         opacity: 0.4;
         content: '';
@@ -70,7 +70,7 @@ limitations under the License.
 }
 
 .mx_NotificationPanel .mx_EventTile_roomName a {
-    color: $primary-fg-color;
+    color: $primary-content;
 }
 
 .mx_NotificationPanel .mx_EventTile_avatar {
@@ -79,13 +79,12 @@ limitations under the License.
 
 .mx_NotificationPanel .mx_EventTile .mx_SenderProfile,
 .mx_NotificationPanel .mx_EventTile .mx_MessageTimestamp {
-    color: $primary-fg-color;
+    color: $primary-content;
     font-size: $font-12px;
     display: inline;
-    padding-left: 0px;
 }
 
-.mx_NotificationPanel .mx_EventTile_senderDetails {
+.mx_NotificationPanel .mx_EventTile:not([data-layout=bubble]) .mx_EventTile_senderDetails {
     padding-left: 36px; // align with the room name
     position: relative;
 
@@ -103,9 +102,10 @@ limitations under the License.
     visibility: visible;
     position: initial;
     display: inline;
+    padding-left: 5px;
 }
 
-.mx_NotificationPanel .mx_EventTile_line {
+.mx_NotificationPanel .mx_EventTile:not([data-layout=bubble]) .mx_EventTile_line {
     margin-right: 0px;
     padding-left: 36px; // align with the room name
     padding-top: 0px;
@@ -118,7 +118,7 @@ limitations under the License.
 }
 
 .mx_NotificationPanel .mx_EventTile:hover .mx_EventTile_line {
-    background-color: $primary-bg-color;
+    background-color: $background;
 }
 
 .mx_NotificationPanel .mx_EventTile_content {

res/css/structures/_RightPanel.scss

@@ -25,6 +25,7 @@ limitations under the License.
     padding: 4px 0;
     box-sizing: border-box;
     height: 100%;
+    contain: strict;
 
     .mx_RoomView_MessageList {
         padding: 14px 18px; // top and bottom is 4px smaller to balance with the padding set above
@@ -42,7 +43,7 @@ limitations under the License.
 .mx_RightPanel_headerButtonGroup {
     height: 100%;
     display: flex;
-    background-color: $primary-bg-color;
+    background-color: $background;
     padding: 0 9px;
     align-items: center;
 }
@@ -98,6 +99,76 @@ limitations under the License.
     mask-position: center;
 }
 
+$dot-size: 8px;
+$pulse-color: $pinned-unread-color;
+
+.mx_RightPanel_pinnedMessagesButton {
+    &::before {
+        mask-image: url('$(res)/img/element-icons/room/pin.svg');
+        mask-position: center;
+    }
+
+    .mx_RightPanel_pinnedMessagesButton_unreadIndicator {
+        position: absolute;
+        right: 0;
+        top: 0;
+        margin: 4px;
+        width: $dot-size;
+        height: $dot-size;
+        border-radius: 50%;
+        transform: scale(1);
+        background: rgba($pulse-color, 1);
+        box-shadow: 0 0 0 0 rgba($pulse-color, 1);
+        animation: mx_RightPanel_indicator_pulse 2s infinite;
+        animation-iteration-count: 1;
+
+        &::after {
+            content: "";
+            position: absolute;
+            width: inherit;
+            height: inherit;
+            top: 0;
+            left: 0;
+            transform: scale(1);
+            transform-origin: center center;
+            animation-name: mx_RightPanel_indicator_pulse_shadow;
+            animation-duration: inherit;
+            animation-iteration-count: inherit;
+            border-radius: 50%;
+            background: rgba($pulse-color, 1);
+        }
+    }
+}
+
+@keyframes mx_RightPanel_indicator_pulse {
+    0% {
+        transform: scale(0.95);
+    }
+
+    70% {
+        transform: scale(1);
+    }
+
+    100% {
+        transform: scale(0.95);
+    }
+}
+
+@keyframes mx_RightPanel_indicator_pulse_shadow {
+    0% {
+        opacity: 0.7;
+    }
+
+    70% {
+        transform: scale(2.2);
+        opacity: 0;
+    }
+
+    100% {
+        opacity: 0;
+    }
+}
+
 .mx_RightPanel_headerButton_highlight {
     &::before {
         background-color: $accent-color !important;

res/css/structures/_RoomDirectory.scss

@@ -28,7 +28,7 @@ limitations under the License.
 
 .mx_RoomDirectory {
     margin-bottom: 12px;
-    color: $primary-fg-color;
+    color: $primary-content;
     word-break: break-word;
     display: flex;
     flex-direction: column;
@@ -61,10 +61,43 @@ limitations under the License.
 .mx_RoomDirectory_tableWrapper {
     overflow-y: auto;
     flex: 1 1 0;
+
+    .mx_RoomDirectory_footer {
+        margin-top: 24px;
+        text-align: center;
+
+        > h5 {
+            margin: 0;
+            font-weight: $font-semi-bold;
+            font-size: $font-15px;
+            line-height: $font-18px;
+            color: $primary-content;
+        }
+
+        > p {
+            margin: 40px auto 60px;
+            font-size: $font-14px;
+            line-height: $font-20px;
+            color: $secondary-content;
+            max-width: 464px; // easier reading
+        }
+
+        > hr {
+            margin: 0;
+            border: none;
+            height: 1px;
+            background-color: $header-panel-bg-color;
+        }
+
+        .mx_RoomDirectory_newRoom {
+            margin: 24px auto 0;
+            width: max-content;
+        }
+    }
 }
 
 .mx_RoomDirectory_table {
-    color: $primary-fg-color;
+    color: $primary-content;
     display: grid;
     font-size: $font-12px;
     grid-template-columns: max-content auto max-content max-content max-content;
@@ -138,11 +171,6 @@ limitations under the License.
     color: $settings-grey-fg-color;
 }
 
-.mx_RoomDirectory_table tr {
-    padding-bottom: 10px;
-    cursor: pointer;
-}
-
 .mx_RoomDirectory .mx_RoomView_MessageList {
     padding: 0;
 }

res/css/structures/_RoomSearch.scss

@@ -33,14 +33,14 @@ limitations under the License.
         height: 16px;
         mask: url('$(res)/img/element-icons/roomlist/search.svg');
         mask-repeat: no-repeat;
-        background-color: $secondary-fg-color;
+        background-color: $secondary-content;
         margin-left: 7px;
     }
 
     .mx_RoomSearch_input {
         border: none !important; // !important to override default app-wide styles
         flex: 1 !important; // !important to override default app-wide styles
-        color: $primary-fg-color !important; // !important to override default app-wide styles
+        color: $primary-content !important; // !important to override default app-wide styles
         padding: 0;
         height: 100%;
         width: 100%;
@@ -48,12 +48,12 @@ limitations under the License.
         line-height: $font-16px;
 
         &:not(.mx_RoomSearch_inputExpanded)::placeholder {
-            color: $tertiary-fg-color !important; // !important to override default app-wide styles
+            color: $tertiary-content !important; // !important to override default app-wide styles
         }
     }
 
     &.mx_RoomSearch_hasQuery {
-        border-color: $secondary-fg-color;
+        border-color: $secondary-content;
     }
 
     &.mx_RoomSearch_focused {
@@ -62,7 +62,7 @@ limitations under the License.
     }
 
     &.mx_RoomSearch_focused, &.mx_RoomSearch_hasQuery {
-        background-color: $roomlist-filter-active-bg-color;
+        background-color: $background;
 
         .mx_RoomSearch_clearButton {
             width: 16px;
@@ -71,7 +71,7 @@ limitations under the License.
             mask-position: center;
             mask-size: contain;
             mask-repeat: no-repeat;
-            background-color: $secondary-fg-color;
+            background-color: $secondary-content;
             margin-right: 8px;
         }
     }

res/css/structures/_RoomStatusBar.scss

@@ -14,7 +14,7 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
-.mx_RoomStatusBar {
+.mx_RoomStatusBar:not(.mx_RoomStatusBar_unsentMessages) {
     margin-left: 65px;
     min-height: 50px;
 }
@@ -27,7 +27,7 @@ limitations under the License.
 
 .mx_RoomStatusBar_typingIndicatorAvatars .mx_BaseAvatar_image {
     margin-right: -12px;
-    border: 1px solid $primary-bg-color;
+    border: 1px solid $background;
 }
 
 .mx_RoomStatusBar_typingIndicatorAvatars .mx_BaseAvatar_initial {
@@ -39,7 +39,7 @@ limitations under the License.
     display: inline-block;
     color: #acacac;
     background-color: #ddd;
-    border: 1px solid $primary-bg-color;
+    border: 1px solid $background;
     border-radius: 40px;
     width: 24px;
     height: 24px;
@@ -68,6 +68,97 @@ limitations under the License.
     min-height: 58px;
 }
 
+.mx_RoomStatusBar_unsentMessages {
+    > div[role="alert"] {
+        // cheat some basic alignment
+        display: flex;
+        align-items: center;
+        min-height: 70px;
+        margin: 12px;
+        padding-left: 16px;
+        background-color: $header-panel-bg-color;
+        border-radius: 4px;
+    }
+
+    .mx_RoomStatusBar_unsentBadge {
+        margin-right: 12px;
+
+        .mx_NotificationBadge {
+            // Override sizing from the default badge
+            width: 24px !important;
+            height: 24px !important;
+            border-radius: 24px !important;
+
+            .mx_NotificationBadge_count {
+                font-size: $font-16px !important; // override default
+            }
+        }
+    }
+
+    .mx_RoomStatusBar_unsentTitle {
+        color: $warning-color;
+        font-size: $font-15px;
+    }
+
+    .mx_RoomStatusBar_unsentDescription {
+        font-size: $font-12px;
+    }
+
+    .mx_RoomStatusBar_unsentButtonBar {
+        flex-grow: 1;
+        text-align: right;
+        margin-right: 22px;
+        color: $muted-fg-color;
+
+        .mx_AccessibleButton {
+            padding: 5px 10px;
+            padding-left: 30px; // 18px for the icon, 2px margin to text, 10px regular padding
+            display: inline-block;
+            position: relative;
+
+            &:nth-child(2) {
+                border-left: 1px solid $resend-button-divider-color;
+            }
+
+            &::before {
+                content: '';
+                position: absolute;
+                left: 10px; // inset for regular button padding
+                background-color: $muted-fg-color;
+                mask-repeat: no-repeat;
+                mask-position: center;
+                mask-size: contain;
+                width: 18px;
+                height: 18px;
+                top: 50%; // text sizes are dynamic
+                transform: translateY(-50%);
+            }
+
+            &.mx_RoomStatusBar_unsentCancelAllBtn::before {
+                mask-image: url('$(res)/img/element-icons/trashcan.svg');
+            }
+
+            &.mx_RoomStatusBar_unsentResendAllBtn {
+                padding-left: 34px; // 28px from above, but +6px to account for the wider icon
+
+                &::before {
+                    mask-image: url('$(res)/img/element-icons/retry.svg');
+                }
+            }
+        }
+
+        .mx_InlineSpinner {
+            vertical-align: middle;
+            margin-right: 5px;
+            top: 1px; // just to help the vertical alignment be slightly better
+
+            & + span {
+                margin-right: 10px; // same margin/padding as the rightmost button
+            }
+        }
+    }
+}
+
 .mx_RoomStatusBar_connectionLostBar img {
     padding-left: 10px;
     padding-right: 10px;
@@ -80,14 +171,14 @@ limitations under the License.
 }
 
 .mx_RoomStatusBar_connectionLostBar_desc {
-    color: $primary-fg-color;
+    color: $primary-content;
     font-size: $font-13px;
     opacity: 0.5;
     padding-bottom: 20px;
 }
 
 .mx_RoomStatusBar_resend_link {
-    color: $primary-fg-color !important;
+    color: $primary-content !important;
     text-decoration: underline !important;
     cursor: pointer;
 }
@@ -96,14 +187,14 @@ limitations under the License.
     height: 50px;
     line-height: $font-50px;
 
-    color: $primary-fg-color;
+    color: $primary-content;
     opacity: 0.5;
     overflow-y: hidden;
     display: block;
 }
 
 .mx_MatrixChat_useCompactLayout {
-    .mx_RoomStatusBar {
+    .mx_RoomStatusBar:not(.mx_RoomStatusBar_unsentMessages) {
         min-height: 40px;
     }
 

res/css/structures/_RoomView.scss

@@ -14,10 +14,22 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
+.mx_RoomView_wrapper {
+    display: flex;
+    flex-direction: column;
+    flex: 1;
+    position: relative;
+    justify-content: center;
+    // Contain the amount of layers rendered by constraining what actually needs re-layering via css
+    contain: strict;
+}
+
 .mx_RoomView {
     word-wrap: break-word;
     display: flex;
     flex-direction: column;
+    flex: 1;
+    position: relative;
 }
 
 
@@ -40,7 +52,7 @@ limitations under the License.
 
     pointer-events: none;
 
-    background-color: $primary-bg-color;
+    background-color: $background;
     opacity: 0.95;
 
     position: absolute;
@@ -57,14 +69,15 @@ limitations under the License.
 
 @keyframes mx_RoomView_fileDropTarget_image_animation {
     from {
-        width: 0px;
+        transform: scaleX(0);
     }
     to {
-        width: 32px;
+        transform: scaleX(1);
     }
 }
 
 .mx_RoomView_fileDropTarget_image {
+    width: 32px;
     animation: mx_RoomView_fileDropTarget_image_animation;
     animation-duration: 0.5s;
     margin-bottom: 16px;
@@ -86,7 +99,7 @@ limitations under the License.
     left: 0;
     right: 0;
     z-index: 3000;
-    background-color: $primary-bg-color;
+    background-color: $background;
 }
 
 .mx_RoomView_auxPanel_hiddenHighlights {
@@ -159,7 +172,7 @@ limitations under the License.
     flex: 0 0 auto;
 
     max-height: 0px;
-    background-color: $primary-bg-color;
+    background-color: $background;
     z-index: 1000;
     overflow: hidden;
 
@@ -237,13 +250,14 @@ hr.mx_RoomView_myReadMarker {
     position: relative;
     top: -1px;
     z-index: 1;
+    will-change: width;
     transition: width 400ms easeinsine 1s, opacity 400ms easeinsine 1s;
     width: 99%;
     opacity: 1;
 }
 
 .mx_RoomView_callStatusBar .mx_UploadBar_uploadProgressInner {
-    background-color: $primary-bg-color;
+    background-color: $background;
 }
 
 .mx_RoomView_callStatusBar .mx_UploadBar_uploadFilename {

res/css/structures/_ScrollPanel.scss

@@ -15,12 +15,13 @@ limitations under the License.
 */
 
 .mx_ScrollPanel {
-
     .mx_RoomView_MessageList {
         position: relative;
         display: flex;
         flex-direction: column;
         justify-content: flex-end;
-        overflow-y: hidden;
+
+        content-visibility: auto;
+        contain-intrinsic-size: 50px;
     }
 }

res/css/structures/_SpaceHierarchy.scss

@@ -14,19 +14,7 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
-.mx_SpaceRoomDirectory_dialogWrapper > .mx_Dialog {
+.mx_SpaceRoomView_landing {
-    max-width: 960px;
-    height: 100%;
-}
-
-.mx_SpaceRoomDirectory {
-    height: 100%;
-    margin-bottom: 12px;
-    color: $primary-fg-color;
-    word-break: break-word;
-    display: flex;
-    flex-direction: column;
-
     .mx_Dialog_title {
         display: flex;
 
@@ -49,42 +37,48 @@ limitations under the License.
 
             > div {
                 font-weight: 400;
-                color: $secondary-fg-color;
+                color: $secondary-content;
                 font-size: $font-15px;
                 line-height: $font-24px;
             }
         }
     }
 
-    .mx_Dialog_content {
     .mx_AccessibleButton_kind_link {
         padding: 0;
+        font-size: inherit;
     }
 
     .mx_SearchBox {
         margin: 24px 0 16px;
     }
 
-        .mx_SpaceRoomDirectory_noResults {
+    .mx_SpaceHierarchy_noResults {
         text-align: center;
 
         > div {
             font-size: $font-15px;
             line-height: $font-24px;
-                color: $secondary-fg-color;
+            color: $secondary-content;
         }
     }
 
-        .mx_SpaceRoomDirectory_listHeader {
+    .mx_SpaceHierarchy_listHeader {
         display: flex;
         min-height: 32px;
         align-items: center;
         font-size: $font-15px;
         line-height: $font-24px;
-            color: $primary-fg-color;
+        color: $primary-content;
+        margin-bottom: 12px;
+
+        > h4 {
+            font-weight: $font-semi-bold;
+            margin: 0;
+        }
 
         .mx_AccessibleButton {
-                padding: 2px 8px;
+            padding: 4px 12px;
             font-weight: normal;
 
             & + .mx_AccessibleButton {
@@ -92,12 +86,17 @@ limitations under the License.
             }
         }
 
+        .mx_AccessibleButton_kind_danger_outline,
+        .mx_AccessibleButton_kind_primary_outline {
+            padding: 3px 12px; // to account for the 1px border
+        }
+
         > span {
             margin-left: auto;
         }
     }
 
-        .mx_SpaceRoomDirectory_error {
+    .mx_SpaceHierarchy_error {
         position: relative;
         font-weight: $font-semi-bold;
         color: $notice-primary-color;
@@ -116,44 +115,44 @@ limitations under the License.
             background-image: url("$(res)/img/element-icons/warning-badge.svg");
         }
     }
-    }
+
+    .mx_SpaceHierarchy_list {
+        list-style: none;
+        padding: 0;
+        margin: 0;
     }
 
-.mx_SpaceRoomDirectory_list {
+    .mx_SpaceHierarchy_roomCount {
-    margin-top: 16px;
-    padding-bottom: 40px;
-
-    .mx_SpaceRoomDirectory_roomCount {
         > h3 {
             display: inline;
             font-weight: $font-semi-bold;
             font-size: $font-18px;
             line-height: $font-22px;
-            color: $primary-fg-color;
+            color: $primary-content;
         }
 
         > span {
             margin-left: 8px;
             font-size: $font-15px;
             line-height: $font-24px;
-            color: $secondary-fg-color;
+            color: $secondary-content;
         }
     }
 
-    .mx_SpaceRoomDirectory_subspace {
+    .mx_SpaceHierarchy_subspace {
         .mx_BaseAvatar_image {
             border-radius: 8px;
         }
     }
 
-    .mx_SpaceRoomDirectory_subspace_toggle {
+    .mx_SpaceHierarchy_subspace_toggle {
         position: absolute;
         left: -1px;
         top: 10px;
         height: 16px;
         width: 16px;
         border-radius: 4px;
-        background-color: $primary-bg-color;
+        background-color: $background;
 
         &::before {
             content: '';
@@ -164,27 +163,26 @@ limitations under the License.
             width: 16px;
             mask-repeat: no-repeat;
             mask-position: center;
-            background-color: $tertiary-fg-color;
+            background-color: $tertiary-content;
             mask-size: 16px;
             transform: rotate(270deg);
             mask-image: url('$(res)/img/feather-customised/chevron-down.svg');
         }
 
-        &.mx_SpaceRoomDirectory_subspace_toggle_shown::before {
+        &.mx_SpaceHierarchy_subspace_toggle_shown::before {
             transform: rotate(0deg);
         }
     }
 
-    .mx_SpaceRoomDirectory_subspace_children {
+    .mx_SpaceHierarchy_subspace_children {
         position: relative;
         padding-left: 12px;
     }
 
-    .mx_SpaceRoomDirectory_roomTile {
+    .mx_SpaceHierarchy_roomTile {
         position: relative;
         padding: 8px 16px;
         border-radius: 8px;
-        min-height: 56px;
         box-sizing: border-box;
 
         display: grid;
@@ -198,7 +196,7 @@ limitations under the License.
             grid-column: 1;
         }
 
-        .mx_SpaceRoomDirectory_roomTile_name {
+        .mx_SpaceHierarchy_roomTile_name {
             font-weight: $font-semi-bold;
             font-size: $font-15px;
             line-height: $font-18px;
@@ -208,7 +206,7 @@ limitations under the License.
             .mx_InfoTooltip {
                 display: inline;
                 margin-left: 12px;
-                color: $tertiary-fg-color;
+                color: $tertiary-content;
                 font-size: $font-12px;
                 line-height: $font-15px;
 
@@ -226,10 +224,10 @@ limitations under the License.
             }
         }
 
-        .mx_SpaceRoomDirectory_roomTile_info {
+        .mx_SpaceHierarchy_roomTile_info {
             font-size: $font-14px;
             line-height: $font-18px;
-            color: $secondary-fg-color;
+            color: $secondary-content;
             grid-row: 2;
             grid-column: 1/3;
             display: -webkit-box;
@@ -238,18 +236,24 @@ limitations under the License.
             overflow: hidden;
         }
 
-        .mx_SpaceRoomDirectory_actions {
+        .mx_SpaceHierarchy_actions {
             text-align: right;
             margin-left: 20px;
             grid-column: 3;
             grid-row: 1/3;
 
             .mx_AccessibleButton {
-                padding: 8px 18px;
+                line-height: $font-24px;
+                padding: 4px 16px;
                 display: inline-block;
                 visibility: hidden;
             }
 
+            .mx_AccessibleButton_kind_danger_outline,
+            .mx_AccessibleButton_kind_primary_outline {
+                padding: 3px 16px; // to account for the 1px border
+            }
+
             .mx_Checkbox {
                 display: inline-flex;
                 vertical-align: middle;
@@ -257,7 +261,7 @@ limitations under the License.
             }
         }
 
-        &:hover {
+        &:hover, &:focus-within {
             background-color: $groupFilterPanel-bg-color;
 
             .mx_AccessibleButton {
@@ -266,8 +270,12 @@ limitations under the License.
         }
     }
 
-    .mx_SpaceRoomDirectory_roomTile,
+    li.mx_SpaceHierarchy_roomTileWrapper {
-    .mx_SpaceRoomDirectory_subspace_children {
+        list-style: none;
+    }
+
+    .mx_SpaceHierarchy_roomTile,
+    .mx_SpaceHierarchy_subspace_children {
         &::before {
             content: "";
             position: absolute;
@@ -279,12 +287,12 @@ limitations under the License.
         }
     }
 
-    .mx_SpaceRoomDirectory_actions {
+    .mx_SpaceHierarchy_actions {
-        .mx_SpaceRoomDirectory_actionsText {
+        .mx_SpaceHierarchy_actionsText {
             font-weight: normal;
             font-size: $font-12px;
             line-height: $font-15px;
-            color: $secondary-fg-color;
+            color: $secondary-content;
         }
     }
 
@@ -295,7 +303,7 @@ limitations under the License.
         margin: 20px 0;
     }
 
-    .mx_SpaceRoomDirectory_createRoom {
+    .mx_SpaceHierarchy_createRoom {
         display: block;
         margin: 16px auto 0;
         width: max-content;

res/css/structures/_SpacePanel.scss

@@ -20,22 +20,24 @@ $gutterSize: 16px;
 $activeBorderTransparentGap: 1px;
 
 $activeBackgroundColor: $roomtile-selected-bg-color;
-$activeBorderColor: $secondary-fg-color;
+$activeBorderColor: $secondary-content;
 
 .mx_SpacePanel {
-    flex: 0 0 auto;
     background-color: $groupFilterPanel-bg-color;
+    flex: 0 0 auto;
     padding: 0;
     margin: 0;
+    position: relative;
+    // Fix for the blurred avatar-background
+    z-index: 1;
 
     // Create another flexbox so the Panel fills the container
     display: flex;
     flex-direction: column;
-    overflow-y: auto;
 
     .mx_SpacePanel_spaceTreeWrapper {
         flex: 1;
-        overflow-y: scroll;
+        padding: 8px 8px 16px 0;
     }
 
     .mx_SpacePanel_toggleCollapse {
@@ -59,17 +61,22 @@ $activeBorderColor: $secondary-fg-color;
         margin: 0;
         list-style: none;
         padding: 0;
+
+        > .mx_SpaceItem {
             padding-left: 16px;
         }
-
-    .mx_AutoHideScrollbar {
-        padding: 8px 0 16px;
     }
 
     .mx_SpaceButton_toggleCollapse {
         cursor: pointer;
     }
 
+    .mx_SpaceItem_dragging {
+        .mx_SpaceButton_toggleCollapse {
+            visibility: hidden;
+        }
+    }
+
     .mx_SpaceTreeLevel {
         display: flex;
         flex-direction: column;
@@ -80,6 +87,10 @@ $activeBorderColor: $secondary-fg-color;
     .mx_SpaceItem {
         display: inline-flex;
         flex-flow: wrap;
+
+        &.mx_SpaceItem_narrow {
+            align-self: baseline;
+        }
     }
 
     .mx_SpaceItem.collapsed {
@@ -103,6 +114,7 @@ $activeBorderColor: $secondary-fg-color;
         align-items: center;
         padding: 4px 4px 4px 0;
         width: 100%;
+        cursor: pointer;
 
         &.mx_SpaceButton_active {
             &:not(.mx_SpaceButton_narrow) .mx_SpaceButton_selectionWrapper {
@@ -227,14 +239,13 @@ $activeBorderColor: $secondary-fg-color;
                 mask-size: contain;
                 mask-repeat: no-repeat;
                 mask-image: url('$(res)/img/element-icons/context-menu.svg');
-                background: $primary-fg-color;
+                background: $primary-content;
             }
         }
     }
 
     .mx_SpacePanel_badgeContainer {
         position: absolute;
-        height: 16px;
 
         // Create a flexbox to make aligning dot badges easier
         display: flex;
@@ -246,23 +257,37 @@ $activeBorderColor: $secondary-fg-color;
 
         .mx_NotificationBadge_dot {
             // make the smaller dot occupy the same width for centering
-            margin-left: 7px;
+            margin: 0 7px;
-            margin-right: 7px;
         }
     }
 
     &.collapsed {
         .mx_SpaceButton {
             .mx_SpacePanel_badgeContainer {
-                right: -3px;
+                right: 0;
-                top: -3px;
+                top: 0;
+
+                .mx_NotificationBadge {
+                    background-clip: padding-box;
+                }
+
+                .mx_NotificationBadge_dot {
+                    margin: 0 -1px 0 0;
+                    border: 3px solid $groupFilterPanel-bg-color;
+                }
+
+                .mx_NotificationBadge_2char,
+                .mx_NotificationBadge_3char {
+                    margin: -5px -5px 0 0;
+                    border: 2px solid $groupFilterPanel-bg-color;
+                }
             }
 
             &.mx_SpaceButton_active .mx_SpacePanel_badgeContainer {
                 // when we draw the selection border we move the relative bounds of our parent
                 // so update our position within the bounds of the parent to maintain position overall
-                right: -6px;
+                right: -3px;
-                top: -6px;
+                top: -3px;
             }
         }
     }
@@ -276,7 +301,7 @@ $activeBorderColor: $secondary-fg-color;
         .mx_SpaceButton:hover,
         .mx_SpaceButton:focus-within,
         .mx_SpaceButton_hasMenuOpen {
-            &:not(.mx_SpaceButton_home) {
+            &:not(.mx_SpaceButton_invite) {
                 // Hide the badge container on hover because it'll be a menu button
                 .mx_SpacePanel_badgeContainer {
                     width: 0;
@@ -347,6 +372,14 @@ $activeBorderColor: $secondary-fg-color;
     .mx_SpacePanel_iconExplore::before {
         mask-image: url('$(res)/img/element-icons/roomlist/browse.svg');
     }
+
+    .mx_SpacePanel_noIcon {
+        display: none;
+
+        & + .mx_IconizedContextMenu_label {
+            padding-left: 5px !important; // override default iconized label style to align with header
+        }
+    }
 }
 
 

res/css/structures/_SpaceRoomView.scss

@@ -32,7 +32,7 @@ $SpaceRoomViewInnerWidth: 428px;
     }
 
     > span {
-        color: $secondary-fg-color;
+        color: $secondary-content;
     }
 
     &::before {
@@ -45,7 +45,7 @@ $SpaceRoomViewInnerWidth: 428px;
         mask-position: center;
         mask-repeat: no-repeat;
         mask-size: 24px;
-        background-color: $tertiary-fg-color;
+        background-color: $tertiary-content;
     }
 
     &:hover {
@@ -56,12 +56,15 @@ $SpaceRoomViewInnerWidth: 428px;
         }
 
         > span {
-            color: $primary-fg-color;
+            color: $primary-content;
         }
     }
 }
 
 .mx_SpaceRoomView {
+    overflow-y: auto;
+    flex: 1;
+
     .mx_MainSplit > div:first-child {
         padding: 80px 60px;
         flex-grow: 1;
@@ -72,15 +75,29 @@ $SpaceRoomViewInnerWidth: 428px;
             margin: 0;
             font-size: $font-24px;
             font-weight: $font-semi-bold;
-            color: $primary-fg-color;
+            color: $primary-content;
             width: max-content;
         }
 
         .mx_SpaceRoomView_description {
             font-size: $font-15px;
-            color: $secondary-fg-color;
+            color: $secondary-content;
             margin-top: 12px;
             margin-bottom: 24px;
+            max-width: $SpaceRoomViewInnerWidth;
+        }
+
+        .mx_AddExistingToSpace {
+            max-width: $SpaceRoomViewInnerWidth;
+
+            .mx_AddExistingToSpace_content {
+                height: calc(100vh - 360px);
+                max-height: 400px;
+            }
+        }
+
+        &:not(.mx_SpaceRoomView_landing) .mx_SpaceFeedbackPrompt {
+            width: $SpaceRoomViewInnerWidth;
         }
 
         .mx_SpaceRoomView_buttons {
@@ -93,6 +110,10 @@ $SpaceRoomViewInnerWidth: 428px;
                 padding: 8px 22px;
                 margin-left: 16px;
             }
+
+            input.mx_AccessibleButton {
+                border: none; // override default styles
+            }
         }
 
         .mx_Field {
@@ -123,6 +144,56 @@ $SpaceRoomViewInnerWidth: 428px;
         box-sizing: border-box;
         box-shadow: 2px 15px 30px $dialog-shadow-color;
         border-radius: 8px;
+        position: relative;
+
+        // XXX remove this when spaces leaves Beta
+        .mx_BetaCard_betaPill {
+            position: absolute;
+            right: 24px;
+            top: 32px;
+        }
+        // XXX remove this when spaces leaves Beta
+        .mx_SpaceRoomView_preview_spaceBetaPrompt {
+            font-weight: $font-semi-bold;
+            font-size: $font-14px;
+            line-height: $font-24px;
+            color: $primary-content;
+            margin-top: 24px;
+            position: relative;
+            padding-left: 24px;
+
+            .mx_AccessibleButton_kind_link {
+                display: inline;
+                padding: 0;
+                font-size: inherit;
+                line-height: inherit;
+            }
+
+            &::before {
+                content: "";
+                position: absolute;
+                height: $font-24px;
+                width: 20px;
+                left: 0;
+                mask-repeat: no-repeat;
+                mask-position: center;
+                mask-size: contain;
+                mask-image: url('$(res)/img/element-icons/room/room-summary.svg');
+                background-color: $secondary-content;
+            }
+        }
+
+        .mx_SpaceRoomView_preview_migratedCommunity {
+            margin-bottom: 16px;
+            padding: 8px 12px;
+            border-radius: 8px;
+            border: 1px solid $input-border-color;
+            width: max-content;
+
+            .mx_BaseAvatar {
+                margin-right: 4px;
+            }
+        }
 
         .mx_SpaceRoomView_preview_inviter {
             display: flex;
@@ -139,7 +210,7 @@ $SpaceRoomViewInnerWidth: 428px;
 
                 .mx_SpaceRoomView_preview_inviter_mxid {
                     line-height: $font-24px;
-                    color: $secondary-fg-color;
+                    color: $secondary-content;
                 }
             }
         }
@@ -156,7 +227,7 @@ $SpaceRoomViewInnerWidth: 428px;
         .mx_SpaceRoomView_preview_topic {
             font-size: $font-14px;
             line-height: $font-22px;
-            color: $secondary-fg-color;
+            color: $secondary-content;
             margin: 20px 0;
             max-height: 160px;
             overflow-y: auto;
@@ -178,6 +249,10 @@ $SpaceRoomViewInnerWidth: 428px;
     }
 
     .mx_SpaceRoomView_landing {
+        display: flex;
+        flex-direction: column;
+        min-width: 0;
+
         > .mx_BaseAvatar_image,
         > .mx_BaseAvatar > .mx_BaseAvatar_image {
             border-radius: 12px;
@@ -186,7 +261,7 @@ $SpaceRoomViewInnerWidth: 428px;
         .mx_SpaceRoomView_landing_name {
             margin: 24px 0 16px;
             font-size: $font-15px;
-            color: $secondary-fg-color;
+            color: $secondary-content;
 
             > span {
                 display: inline-block;
@@ -214,51 +289,22 @@ $SpaceRoomViewInnerWidth: 428px;
 
             .mx_SpaceRoomView_info {
                 display: inline-block;
-                margin: 0;
+                margin: 0 auto 0 0;
             }
 
             .mx_FacePile {
                 display: inline-block;
-                margin-left: auto;
                 margin-right: 12px;
 
                 .mx_FacePile_faces {
                     cursor: pointer;
-
-                    > span:hover {
-                        .mx_BaseAvatar {
-                            filter: brightness(0.8);
-                        }
-                    }
-
-                    > span:first-child {
-                        position: relative;
-
-                        .mx_BaseAvatar {
-                            filter: brightness(0.8);
-                        }
-
-                        &::before {
-                            content: "";
-                            z-index: 1;
-                            position: absolute;
-                            top: 0;
-                            left: 0;
-                            height: 30px;
-                            width: 30px;
-                            background: #ffffff; // white icon fill
-                            mask-position: center;
-                            mask-size: 24px;
-                            mask-repeat: no-repeat;
-                            mask-image: url('$(res)/img/element-icons/room/ellipsis.svg');
-                        }
-                    }
                 }
             }
 
             .mx_SpaceRoomView_landing_inviteButton {
                 position: relative;
-                padding-left: 40px;
+                padding: 4px 18px 4px 40px;
+                line-height: $font-24px;
                 height: min-content;
 
                 &::before {
@@ -274,101 +320,53 @@ $SpaceRoomViewInnerWidth: 428px;
                     mask-image: url('$(res)/img/element-icons/room/invite.svg');
                 }
             }
+
+            .mx_SpaceRoomView_landing_settingsButton {
+                position: relative;
+                margin-left: 16px;
+                width: 24px;
+                height: 24px;
+
+                &::before {
+                    position: absolute;
+                    content: "";
+                    left: 0;
+                    top: 0;
+                    height: 24px;
+                    width: 24px;
+                    background: $tertiary-content;
+                    mask-position: center;
+                    mask-size: contain;
+                    mask-repeat: no-repeat;
+                    mask-image: url('$(res)/img/element-icons/settings.svg');
+                }
+            }
         }
 
         .mx_SpaceRoomView_landing_topic {
             font-size: $font-15px;
             margin-top: 12px;
             margin-bottom: 16px;
-        }
+            white-space: pre-wrap;
-
+            word-wrap: break-word;
-        > hr {
-            border: none;
-            height: 1px;
-            background-color: $groupFilterPanel-bg-color;
-        }
-
-        .mx_SpaceRoomView_landing_adminButtons {
-            margin-top: 24px;
-
-            .mx_AccessibleButton {
-                position: relative;
-                width: 160px;
-                height: 124px;
-                box-sizing: border-box;
-                padding: 72px 16px 0;
-                border-radius: 12px;
-                border: 1px solid $input-border-color;
-                margin-right: 28px;
-                margin-bottom: 20px;
-                font-size: $font-14px;
-                display: inline-block;
-                vertical-align: bottom;
-
-                &:last-child {
-                    margin-right: 0;
-                }
-
-                &:hover {
-                    background-color: rgba(141, 151, 165, 0.1);
-                }
-
-                &::before, &::after {
-                    position: absolute;
-                    content: "";
-                    left: 16px;
-                    top: 16px;
-                    height: 40px;
-                    width: 40px;
-                    border-radius: 20px;
-                }
-
-                &::after {
-                    mask-position: center;
-                    mask-size: 30px;
-                    mask-repeat: no-repeat;
-                    background: #ffffff; // white icon fill
-                }
-
-                &.mx_SpaceRoomView_landing_addButton {
-                    &::before {
-                        background-color: #ac3ba8;
-                    }
-
-                    &::after {
-                        mask-image: url('$(res)/img/element-icons/roomlist/explore.svg');
-                    }
-                }
-
-                &.mx_SpaceRoomView_landing_createButton {
-                    &::before {
-                        background-color: #368bd6;
-                    }
-
-                    &::after {
-                        mask-image: url('$(res)/img/element-icons/roomlist/explore.svg');
-                    }
-                }
-
-                &.mx_SpaceRoomView_landing_settingsButton {
-                    &::before {
-                        background-color: #5c56f5;
-                    }
-
-                    &::after {
-                        mask-image: url('$(res)/img/element-icons/settings.svg');
-                    }
-                }
-            }
         }
 
         .mx_SearchBox {
             margin: 0 0 20px;
+            flex: 0;
+        }
+
+        .mx_SpaceFeedbackPrompt {
+            padding: 7px; // 8px - 1px border
+            border: 1px solid rgba($primary-content, .1);
+            border-radius: 8px;
+            width: max-content;
+            margin: 0 0 -40px auto; // collapse its own height to not push other components down
         }
     }
 
     .mx_SpaceRoomView_privateScope {
-        .mx_AccessibleButton {
+        > .mx_AccessibleButton {
             @mixin SpacePillButton;
         }
 
@@ -381,9 +379,65 @@ $SpaceRoomViewInnerWidth: 428px;
         }
     }
 
+    .mx_SpaceRoomView_betaWarning {
+        padding: 12px 12px 12px 54px;
+        position: relative;
+        font-size: $font-15px;
+        line-height: $font-24px;
+        width: 432px;
+        border-radius: 8px;
+        background-color: $info-plinth-bg-color;
+        color: $secondary-content;
+        box-sizing: border-box;
+
+        > h3 {
+            font-weight: $font-semi-bold;
+            font-size: inherit;
+            line-height: inherit;
+            margin: 0;
+        }
+
+        > p {
+            font-size: inherit;
+            line-height: inherit;
+            margin: 0;
+        }
+
+        &::before {
+            mask-image: url('$(res)/img/element-icons/room/room-summary.svg');
+            mask-position: center;
+            mask-repeat: no-repeat;
+            mask-size: contain;
+            content: '';
+            width: 20px;
+            height: 20px;
+            position: absolute;
+            top: 14px;
+            left: 14px;
+            background-color: $secondary-content;
+        }
+    }
+
     .mx_SpaceRoomView_inviteTeammates {
+        // XXX remove this when spaces leaves Beta
+        .mx_SpaceRoomView_inviteTeammates_betaDisclaimer {
+            padding: 58px 16px 16px;
+            position: relative;
+            border-radius: 8px;
+            background-color: $header-panel-bg-color;
+            max-width: $SpaceRoomViewInnerWidth;
+            margin: 20px 0 30px;
+            box-sizing: border-box;
+
+            .mx_BetaCard_betaPill {
+                position: absolute;
+                left: 16px;
+                top: 16px;
+            }
+        }
+
         .mx_SpaceRoomView_inviteTeammates_buttons {
-            color: $secondary-fg-color;
+            color: $secondary-content;
             margin-top: 28px;
 
             .mx_AccessibleButton {
@@ -399,7 +453,7 @@ $SpaceRoomViewInnerWidth: 428px;
                     width: 24px;
                     top: 0;
                     left: 0;
-                    background-color: $secondary-fg-color;
+                    background-color: $secondary-content;
                     mask-repeat: no-repeat;
                     mask-position: center;
                     mask-size: contain;
@@ -418,7 +472,7 @@ $SpaceRoomViewInnerWidth: 428px;
 }
 
 .mx_SpaceRoomView_info {
-    color: $secondary-fg-color;
+    color: $secondary-content;
     font-size: $font-15px;
     line-height: $font-24px;
     margin: 20px 0;
@@ -437,7 +491,7 @@ $SpaceRoomViewInnerWidth: 428px;
             left: -2px;
             mask-position: center;
             mask-repeat: no-repeat;
-            background-color: $tertiary-fg-color;
+            background-color: $tertiary-content;
         }
     }
 

res/css/structures/_TabbedView.scss

@@ -1,6 +1,7 @@
 /*
 Copyright 2017 Travis Ralston
 Copyright 2019 New Vector Ltd
+Copyright 2021 The Matrix.org Foundation C.I.C.
 
 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.
@@ -20,7 +21,6 @@ limitations under the License.
     padding: 0 0 0 16px;
     display: flex;
     flex-direction: column;
-    position: absolute;
     top: 0;
     bottom: 0;
     left: 0;
@@ -28,13 +28,95 @@ limitations under the License.
     margin-top: 8px;
 }
 
+.mx_TabbedView_tabsOnLeft {
+    flex-direction: column;
+    position: absolute;
+
     .mx_TabbedView_tabLabels {
         width: 170px;
         max-width: 170px;
-    color: $tab-label-fg-color;
         position: fixed;
     }
 
+    .mx_TabbedView_tabPanel {
+        margin-left: 240px; // 170px sidebar + 70px padding
+        flex-direction: column;
+    }
+
+    .mx_TabbedView_tabLabel_active {
+        background-color: $tab-label-active-bg-color;
+        color: $tab-label-active-fg-color;
+    }
+
+    .mx_TabbedView_tabLabel_active .mx_TabbedView_maskedIcon::before {
+        background-color: $tab-label-active-icon-bg-color;
+    }
+
+    .mx_TabbedView_maskedIcon {
+        width: 16px;
+        height: 16px;
+        margin-left: 8px;
+        margin-right: 16px;
+    }
+
+    .mx_TabbedView_maskedIcon::before {
+        mask-size: 16px;
+        width: 16px;
+        height: 16px;
+    }
+}
+
+.mx_TabbedView_tabsOnTop {
+    flex-direction: column;
+
+    .mx_TabbedView_tabLabels {
+        display: flex;
+        margin-bottom: 8px;
+    }
+
+    .mx_TabbedView_tabLabel {
+        padding-left: 0px;
+        padding-right: 52px;
+
+        .mx_TabbedView_tabLabel_text {
+            font-size: 15px;
+            color: $tertiary-content;
+        }
+    }
+
+    .mx_TabbedView_tabPanel {
+        flex-direction: row;
+    }
+
+    .mx_TabbedView_tabLabel_active {
+        color: $accent-color;
+        .mx_TabbedView_tabLabel_text {
+            color: $accent-color;
+        }
+    }
+
+    .mx_TabbedView_tabLabel_active .mx_TabbedView_maskedIcon::before {
+        background-color: $accent-color;
+    }
+
+    .mx_TabbedView_maskedIcon {
+        width: 22px;
+        height: 22px;
+        margin-left: 0px;
+        margin-right: 8px;
+    }
+
+    .mx_TabbedView_maskedIcon::before {
+        mask-size: 22px;
+        width: inherit;
+        height: inherit;
+    }
+}
+
+.mx_TabbedView_tabLabels {
+    color: $tab-label-fg-color;
+}
+
 .mx_TabbedView_tabLabel {
     display: flex;
     align-items: center;
@@ -46,43 +128,25 @@ limitations under the License.
     position: relative;
 }
 
-.mx_TabbedView_tabLabel_active {
-    background-color: $tab-label-active-bg-color;
-    color: $tab-label-active-fg-color;
-}
-
 .mx_TabbedView_maskedIcon {
-    margin-left: 8px;
-    margin-right: 16px;
-    width: 16px;
-    height: 16px;
     display: inline-block;
 }
 
 .mx_TabbedView_maskedIcon::before {
     display: inline-block;
-    background-color: $tab-label-icon-bg-color;
+    background-color: $icon-button-color;
     mask-repeat: no-repeat;
-    mask-size: 16px;
-    width: 16px;
-    height: 16px;
     mask-position: center;
     content: '';
 }
 
-.mx_TabbedView_tabLabel_active .mx_TabbedView_maskedIcon::before {
-    background-color: $tab-label-active-icon-bg-color;
-}
-
 .mx_TabbedView_tabLabel_text {
     vertical-align: middle;
 }
 
 .mx_TabbedView_tabPanel {
-    margin-left: 240px; // 170px sidebar + 70px padding
     flex-grow: 1;
     display: flex;
-    flex-direction: column;
     min-height: 0; // firefox
 }
 

res/css/structures/_ToastContainer.scss

@@ -28,7 +28,7 @@ limitations under the License.
         margin: 0 4px;
         grid-row: 2 / 4;
         grid-column: 1;
-        background-color: $dark-panel-bg-color;
+        background-color: $system;
         box-shadow: 0px 4px 20px rgba(0, 0, 0, 0.5);
         border-radius: 8px;
     }
@@ -36,8 +36,8 @@ limitations under the License.
     .mx_Toast_toast {
         grid-row: 1 / 3;
         grid-column: 1;
-        color: $primary-fg-color;
+        background-color: $system;
-        background-color: $dark-panel-bg-color;
+        color: $primary-content;
         box-shadow: 0px 4px 20px rgba(0, 0, 0, 0.5);
         border-radius: 8px;
         overflow: hidden;
@@ -63,7 +63,7 @@ limitations under the License.
 
             &.mx_Toast_icon_verification::after {
                 mask-image: url("$(res)/img/e2e/normal.svg");
-                background-color: $primary-fg-color;
+                background-color: $primary-content;
             }
 
             &.mx_Toast_icon_verification_warning {
@@ -71,7 +71,7 @@ limitations under the License.
                 &::before {
                     background-color: #ffffff;
                     mask-image: url('$(res)/img/e2e/normal.svg');
-                    mask-size: 90%;
+                    mask-size: 80%;
                 }
 
                 &::after {
@@ -82,7 +82,7 @@ limitations under the License.
 
             &.mx_Toast_icon_secure_backup::after {
                 mask-image: url('$(res)/img/feather-customised/secure-backup.svg');
-                background-color: $primary-fg-color;
+                background-color: $primary-content;
             }
 
             .mx_Toast_title, .mx_Toast_body {
@@ -135,10 +135,14 @@ limitations under the License.
             float: right;
             display: flex;
 
-            .mx_FormButton {
+            .mx_AccessibleButton {
                 min-width: 96px;
                 box-sizing: border-box;
             }
+
+            .mx_AccessibleButton + .mx_AccessibleButton {
+                margin-left: 5px;
+            }
         }
 
         .mx_Toast_description {
@@ -159,7 +163,7 @@ limitations under the License.
         }
 
         .mx_Toast_detail {
-            color: $secondary-fg-color;
+            color: $secondary-content;
         }
 
         .mx_Toast_deviceID {

res/css/structures/_UserMenu.scss

@@ -35,7 +35,7 @@ limitations under the License.
         // we cheat opacity on the theme colour with an after selector here
         &::after {
             content: '';
-            border-bottom: 1px solid $primary-fg-color; // XXX: Variable abuse
+            border-bottom: 1px solid $primary-content;
             opacity: 0.2;
             display: block;
             padding-top: 8px;
@@ -58,7 +58,7 @@ limitations under the License.
             mask-position: center;
             mask-size: contain;
             mask-repeat: no-repeat;
-            background: $tertiary-fg-color;
+            background: $tertiary-content;
             mask-image: url('$(res)/img/feather-customised/chevron-down.svg');
         }
     }
@@ -117,6 +117,32 @@ limitations under the License.
         .mx_UserMenu_headerButtons {
             // No special styles: the rest of the layout happens to make it work.
         }
+
+        .mx_UserMenu_dnd {
+            width: 24px;
+            height: 24px;
+            margin-right: 8px;
+            position: relative;
+
+            &::before {
+                content: '';
+                position: absolute;
+                width: 24px;
+                height: 24px;
+                mask-position: center;
+                mask-size: contain;
+                mask-repeat: no-repeat;
+                background: $muted-fg-color;
+            }
+
+            &.mx_UserMenu_dnd_noisy::before {
+                mask-image: url('$(res)/img/element-icons/notifications.svg');
+            }
+
+            &.mx_UserMenu_dnd_muted::before {
+                mask-image: url('$(res)/img/element-icons/roomlist/notifications-off.svg');
+            }
+        }
     }
 
     &.mx_UserMenu_minimized {
@@ -150,7 +176,7 @@ limitations under the License.
             width: 85%;
             opacity: 0.2;
             border: none;
-            border-bottom: 1px solid $primary-fg-color; // XXX: Variable abuse
+            border-bottom: 1px solid $primary-content;
         }
 
         &.mx_IconizedContextMenu {
@@ -266,7 +292,7 @@ limitations under the License.
             mask-position: center;
             mask-size: contain;
             mask-repeat: no-repeat;
-            background: $primary-fg-color;
+            background: $primary-content;
         }
     }
 

res/css/structures/_ViewSource.scss

@@ -24,7 +24,7 @@ limitations under the License.
 .mx_ViewSource_heading {
     font-size: $font-17px;
     font-weight: 400;
-    color: $primary-fg-color;
+    color: $primary-content;
     margin-top: 0.7em;
 }
 

res/css/structures/auth/_Login.scss

@@ -96,3 +96,10 @@ div.mx_AccessibleButton_kind_link.mx_Login_forgot {
         cursor: not-allowed;
     }
 }
+.mx_Login_spinner {
+    display: flex;
+    justify-content: center;
+    align-items: center;
+    align-content: center;
+    padding: 14px;
+}

res/css/views/audio_messages/_AudioPlayer.scss

@@ -0,0 +1,67 @@
+/*
+Copyright 2021 The Matrix.org Foundation C.I.C.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+.mx_MediaBody.mx_AudioPlayer_container {
+    padding: 16px 12px 12px 12px;
+
+    .mx_AudioPlayer_primaryContainer {
+        display: flex;
+
+        .mx_PlayPauseButton {
+            margin-right: 8px;
+        }
+
+        .mx_AudioPlayer_mediaInfo {
+            flex: 1;
+            overflow: hidden; // makes the ellipsis on the file name work
+
+            & > * {
+                display: block;
+            }
+
+            .mx_AudioPlayer_mediaName {
+                color: $primary-content;
+                font-size: $font-15px;
+                line-height: $font-15px;
+                text-overflow: ellipsis;
+                white-space: nowrap;
+                overflow: hidden;
+                padding-bottom: 4px; // mimics the line-height differences in the Figma
+            }
+
+            .mx_AudioPlayer_byline {
+                font-size: $font-12px;
+                line-height: $font-12px;
+            }
+        }
+    }
+
+    .mx_AudioPlayer_seek {
+        display: flex;
+        align-items: center;
+
+        .mx_SeekBar {
+            flex: 1;
+        }
+
+        .mx_Clock {
+            width: $font-42px; // we're not using a monospace font, so fake it
+            min-width: $font-42px; // for flexbox
+            padding-left: 4px; // isolate from seek bar
+            text-align: right;
+        }
+    }
+}

res/css/views/audio_messages/_PlayPauseButton.scss

@@ -0,0 +1,53 @@
+/*
+Copyright 2021 The Matrix.org Foundation C.I.C.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+.mx_PlayPauseButton {
+    position: relative;
+    width: 32px;
+    height: 32px;
+    min-width: 32px; // for when the button is used in a flexbox
+    min-height: 32px; // for when the button is used in a flexbox
+    border-radius: 32px;
+    background-color: $voice-playback-button-bg-color;
+
+    &::before {
+        content: '';
+        position: absolute; // sizing varies by icon
+        background-color: $voice-playback-button-fg-color;
+        mask-repeat: no-repeat;
+        mask-size: contain;
+    }
+
+    &.mx_PlayPauseButton_disabled::before {
+        opacity: 0.5;
+    }
+
+    &.mx_PlayPauseButton_play::before {
+        width: 13px;
+        height: 16px;
+        top: 8px; // center
+        left: 12px; // center
+        mask-image: url('$(res)/img/element-icons/play.svg');
+    }
+
+    &.mx_PlayPauseButton_pause::before {
+        width: 10px;
+        height: 12px;
+        top: 10px; // center
+        left: 11px; // center
+        mask-image: url('$(res)/img/element-icons/pause.svg');
+    }
+}

res/css/views/audio_messages/_PlaybackContainer.scss

@@ -0,0 +1,56 @@
+/*
+Copyright 2021 The Matrix.org Foundation C.I.C.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+// Dev note: there's no actual component called <PlaybackContainer />. These classes
+// are shared amongst multiple voice message components.
+
+// Container for live recording and playback controls
+.mx_MediaBody.mx_VoiceMessagePrimaryContainer {
+    // The waveform (right) has a 1px padding on it that we want to account for, otherwise
+    // inherit from mx_MediaBody
+    padding-right: 11px;
+
+    // Cheat at alignment a bit
+    display: flex;
+    align-items: center;
+
+    contain: content;
+
+    .mx_Waveform {
+        .mx_Waveform_bar {
+            background-color: $voice-record-waveform-incomplete-fg-color;
+            height: 100%;
+            /* Variable set by a JS component */
+            transform: scaleY(max(0.05, var(--barHeight)));
+
+            &.mx_Waveform_bar_100pct {
+                // Small animation to remove the mechanical feel of progress
+                transition: background-color 250ms ease;
+                background-color: $message-body-panel-fg-color;
+            }
+        }
+    }
+
+    .mx_Clock {
+        width: $font-42px; // we're not using a monospace font, so fake it
+        padding-right: 6px; // with the fixed width this ends up as a visual 8px most of the time, as intended.
+        padding-left: 8px; // isolate from recording circle / play control
+    }
+
+    &.mx_VoiceMessagePrimaryContainer_noWaveform {
+        max-width: 162px; // with all the padding this results in 185px wide
+    }
+}

res/css/views/audio_messages/_SeekBar.scss

@@ -0,0 +1,103 @@
+/*
+Copyright 2021 The Matrix.org Foundation C.I.C.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+// CSS inspiration from:
+// * https://www.w3schools.com/howto/howto_js_rangeslider.asp
+// * https://stackoverflow.com/a/28283806
+// * https://css-tricks.com/styling-cross-browser-compatible-range-inputs-css/
+
+.mx_SeekBar {
+    // Dev note: we deliberately do not have the -ms-track (and friends) selectors because we don't
+    // need to support IE.
+
+    appearance: none; // default style override
+
+    width: 100%;
+    height: 1px;
+    background: $quaternary-content;
+    outline: none; // remove blue selection border
+    position: relative; // for before+after pseudo elements later on
+
+    cursor: pointer;
+
+    &::-webkit-slider-thumb {
+        appearance: none; // default style override
+
+        // Dev note: This needs to be duplicated with the -moz-range-thumb selector
+        // because otherwise Edge (webkit) will fail to see the styles and just refuse
+        // to apply them.
+        width: 8px;
+        height: 8px;
+        border-radius: 8px;
+        background-color: $tertiary-content;
+        cursor: pointer;
+    }
+
+    &::-moz-range-thumb {
+        width: 8px;
+        height: 8px;
+        border-radius: 8px;
+        background-color: $tertiary-content;
+        cursor: pointer;
+
+        // Firefox adds a border on the thumb
+        border: none;
+    }
+
+    // This is for webkit support, but we can't limit the functionality of it to just webkit
+    // browsers. Firefox responds to webkit-prefixed values now, which means we can't use media
+    // or support queries to selectively apply the rule. An upside is that this CSS doesn't work
+    // in firefox, so it's just wasted CPU/GPU time.
+    &::before { // ::before to ensure it ends up under the thumb
+        content: '';
+        background-color: $tertiary-content;
+
+        // Absolute positioning to ensure it overlaps with the existing bar
+        position: absolute;
+        top: 0;
+        left: 0;
+
+        // Sizing to match the bar
+        width: 100%;
+        height: 1px;
+
+        // And finally dynamic width without overly hurting the rendering engine.
+        transform-origin: 0 100%;
+        transform: scaleX(var(--fillTo));
+    }
+
+    // This is firefox's built-in support for the above, with 100% less hacks.
+    &::-moz-range-progress {
+        background-color: $tertiary-content;
+        height: 1px;
+    }
+
+    &:disabled {
+        opacity: 0.5;
+    }
+
+    // Increase clickable area for the slider (approximately same size as browser default)
+    // We do it this way to keep the same padding and margins of the element, avoiding margin math.
+    // Source: https://front-back.com/expand-clickable-areas-for-a-better-touch-experience/
+    &::after {
+        content: '';
+        position: absolute;
+        top: -6px;
+        bottom: -6px;
+        left: 0;
+        right: 0;
+    }
+}

res/css/views/auth/_AuthButtons.scss

@@ -39,7 +39,7 @@ limitations under the License.
     min-width: 80px;
 
     background-color: $accent-color;
-    color: $primary-bg-color;
+    color: $background;
 
     cursor: pointer;
 

res/css/views/auth/_InteractiveAuthEntryComponents.scss

@@ -85,7 +85,7 @@ limitations under the License.
 .mx_InteractiveAuthEntryComponents_termsPolicy {
     display: flex;
     flex-direction: row;
-    justify-content: start;
+    justify-content: flex-start;
     align-items: center;
 }
 

res/css/views/avatars/_DecoratedRoomAvatar.scss

@@ -16,6 +16,7 @@ limitations under the License.
 
 .mx_DecoratedRoomAvatar, .mx_ExtraTile {
     position: relative;
+    contain: content;
 
     &.mx_DecoratedRoomAvatar_cutout .mx_BaseAvatar {
         mask-image: url('$(res)/img/element-icons/roomlist/decorated-avatar-mask.svg');
@@ -46,7 +47,7 @@ limitations under the License.
         mask-position: center;
         mask-size: contain;
         mask-repeat: no-repeat;
-        background: $secondary-fg-color;
+        background: $secondary-content;
         mask-image: url('$(res)/img/globe.svg');
     }
 

res/css/views/beta/_BetaCard.scss

@@ -0,0 +1,161 @@
+/*
+Copyright 2021 The Matrix.org Foundation C.I.C.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+.mx_BetaCard {
+    margin-bottom: 20px;
+    padding: 24px;
+    background-color: $settings-profile-placeholder-bg-color;
+    border-radius: 8px;
+    box-sizing: border-box;
+
+    .mx_BetaCard_columns {
+        display: flex;
+
+        > div {
+            .mx_BetaCard_title {
+                font-weight: $font-semi-bold;
+                font-size: $font-18px;
+                line-height: $font-22px;
+                color: $primary-content;
+                margin: 4px 0 14px;
+
+                .mx_BetaCard_betaPill {
+                    margin-left: 12px;
+                }
+            }
+
+            .mx_BetaCard_caption {
+                font-size: $font-15px;
+                line-height: $font-20px;
+                color: $secondary-content;
+                margin-bottom: 20px;
+            }
+
+            .mx_BetaCard_buttons .mx_AccessibleButton {
+                display: block;
+                margin: 12px 0;
+                padding: 7px 40px;
+                width: auto;
+            }
+
+            .mx_BetaCard_disclaimer {
+                font-size: $font-12px;
+                line-height: $font-15px;
+                color: $secondary-content;
+                margin-top: 20px;
+            }
+        }
+
+        > img {
+            margin: auto 0 auto 20px;
+            width: 300px;
+            object-fit: contain;
+            height: 100%;
+        }
+    }
+
+    .mx_BetaCard_relatedSettings {
+        .mx_SettingsFlag {
+            margin: 16px 0 0;
+            font-size: $font-15px;
+            line-height: $font-24px;
+            color: $primary-content;
+
+            .mx_SettingsFlag_microcopy {
+                margin-top: 4px;
+                font-size: $font-12px;
+                line-height: $font-15px;
+                color: $secondary-content;
+            }
+        }
+    }
+}
+
+.mx_BetaCard_betaPill {
+    background-color: $accent-color-alt;
+    padding: 4px 10px;
+    border-radius: 8px;
+    text-transform: uppercase;
+    font-size: 12px;
+    line-height: 15px;
+    color: #FFFFFF;
+    display: inline-block;
+    vertical-align: text-bottom;
+
+    &.mx_BetaCard_betaPill_clickable {
+        cursor: pointer;
+    }
+}
+
+$pulse-color: $accent-color-alt;
+$dot-size: 12px;
+
+.mx_BetaDot {
+    border-radius: 50%;
+    margin: 10px;
+    height: $dot-size;
+    width: $dot-size;
+    transform: scale(1);
+    background: rgba($pulse-color, 1);
+    animation: mx_Beta_bluePulse 2s infinite;
+    animation-iteration-count: 20;
+    position: relative;
+
+    &::after {
+        content: "";
+        position: absolute;
+        width: inherit;
+        height: inherit;
+        top: 0;
+        left: 0;
+        transform: scale(1);
+        transform-origin: center center;
+        animation-name: mx_Beta_bluePulse_shadow;
+        animation-duration: inherit;
+        animation-iteration-count: inherit;
+        border-radius: 50%;
+        background: rgba($pulse-color, 1);
+    }
+}
+
+@keyframes mx_Beta_bluePulse {
+    0% {
+        transform: scale(0.95);
+    }
+
+    70% {
+        transform: scale(1);
+    }
+
+    100% {
+        transform: scale(0.95);
+    }
+}
+
+@keyframes mx_Beta_bluePulse_shadow {
+    0% {
+        opacity: 0.7;
+    }
+
+    70% {
+        transform: scale(2.2);
+        opacity: 0;
+    }
+
+    100% {
+        opacity: 0;
+    }
+}

res/css/views/context_menus/_IconizedContextMenu.scss

@@ -36,7 +36,7 @@ limitations under the License.
             //
             // Therefore, we just hack in a line and border the thing ourselves
             &::before {
-                border-top: 1px solid $primary-fg-color;
+                border-top: 1px solid $primary-content;
                 opacity: 0.1;
                 content: '';
 
@@ -63,7 +63,7 @@ limitations under the License.
             padding-top: 12px;
             padding-bottom: 12px;
             text-decoration: none;
-            color: $primary-fg-color;
+            color: $primary-content;
             font-size: $font-15px;
             line-height: $font-24px;
 
@@ -99,6 +99,10 @@ limitations under the License.
             .mx_IconizedContextMenu_icon + .mx_IconizedContextMenu_label {
                 padding-left: 14px;
             }
+
+            .mx_BetaCard_betaPill {
+                margin-left: 16px;
+            }
         }
     }
 
@@ -115,7 +119,7 @@ limitations under the License.
             mask-position: center;
             mask-size: contain;
             mask-repeat: no-repeat;
-            background: $primary-fg-color;
+            background: $primary-content;
         }
     }
 
@@ -145,12 +149,17 @@ limitations under the License.
         }
     }
 
-    .mx_IconizedContextMenu_checked {
+    .mx_IconizedContextMenu_checked,
+    .mx_IconizedContextMenu_unchecked {
         margin-left: 16px;
         margin-right: -5px;
+    }
 
-        &::before {
+    .mx_IconizedContextMenu_checked::before {
         mask-image: url('$(res)/img/element-icons/roomlist/checkmark.svg');
     }
+
+    .mx_IconizedContextMenu_unchecked::before {
+        content: unset;
     }
 }

res/css/views/context_menus/_MessageContextMenu.scss

@@ -1,5 +1,6 @@
 /*
 Copyright 2015, 2016 OpenMarket Ltd
+Copyright 2021 Michael Weimann <mail@michael-weimann.eu>
 
 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.
@@ -15,16 +16,69 @@ limitations under the License.
 */
 
 .mx_MessageContextMenu {
-    padding: 6px;
-}
 
-.mx_MessageContextMenu_field {
+    .mx_IconizedContextMenu_icon {
+        width: 16px;
+        height: 16px;
         display: block;
-    padding: 3px 6px 3px 6px;
+
-    cursor: pointer;
+        &::before {
-    white-space: nowrap;
+            content: '';
+            width: 16px;
+            height: 16px;
+            display: block;
+            mask-position: center;
+            mask-size: contain;
+            mask-repeat: no-repeat;
+            background: $primary-content;
+        }
     }
 
-.mx_MessageContextMenu_field.mx_MessageContextMenu_fieldSet {
+    .mx_MessageContextMenu_iconCollapse::before {
-    font-weight: bold;
+        mask-image: url('$(res)/img/element-icons/message/chevron-up.svg');
+    }
+
+    .mx_MessageContextMenu_iconReport::before {
+        mask-image: url('$(res)/img/element-icons/warning-badge.svg');
+    }
+
+    .mx_MessageContextMenu_iconLink::before {
+        mask-image: url('$(res)/img/element-icons/link.svg');
+    }
+
+    .mx_MessageContextMenu_iconPermalink::before {
+        mask-image: url('$(res)/img/element-icons/room/share.svg');
+    }
+
+    .mx_MessageContextMenu_iconUnhidePreview::before {
+        mask-image: url('$(res)/img/element-icons/settings/appearance.svg');
+    }
+
+    .mx_MessageContextMenu_iconForward::before {
+        mask-image: url('$(res)/img/element-icons/message/fwd.svg');
+    }
+
+    .mx_MessageContextMenu_iconRedact::before {
+        mask-image: url('$(res)/img/element-icons/trashcan.svg');
+    }
+
+    .mx_MessageContextMenu_iconResend::before {
+        mask-image: url('$(res)/img/element-icons/retry.svg');
+    }
+
+    .mx_MessageContextMenu_iconSource::before {
+        mask-image: url('$(res)/img/element-icons/room/format-bar/code.svg');
+    }
+
+    .mx_MessageContextMenu_iconQuote::before {
+        mask-image: url('$(res)/img/element-icons/room/format-bar/quote.svg');
+    }
+
+    .mx_MessageContextMenu_iconPin::before {
+        mask-image: url('$(res)/img/element-icons/room/pin-upright.svg');
+    }
+
+    .mx_MessageContextMenu_iconUnpin::before {
+        mask-image: url('$(res)/img/element-icons/room/pin.svg');
+    }
 }

res/css/views/context_menus/_StatusMessageContextMenu.scss

@@ -27,7 +27,7 @@ input.mx_StatusMessageContextMenu_message {
     border-radius: 4px;
     border: 1px solid $input-border-color;
     padding: 6.5px 11px;
-    background-color: $primary-bg-color;
+    background-color: $background;
     font-weight: normal;
     margin: 0 0 10px;
 }

res/css/views/context_menus/_TagTileContextMenu.scss

@@ -38,10 +38,23 @@ limitations under the License.
     mask-image: url('$(res)/img/element-icons/view-community.svg');
 }
 
+.mx_TagTileContextMenu_moveUp::before {
+    transform: rotate(180deg);
+    mask-image: url('$(res)/img/feather-customised/chevron-down.svg');
+}
+
+.mx_TagTileContextMenu_moveDown::before {
+    mask-image: url('$(res)/img/feather-customised/chevron-down.svg');
+}
+
 .mx_TagTileContextMenu_hideCommunity::before {
     mask-image: url('$(res)/img/element-icons/hide.svg');
 }
 
+.mx_TagTileContextMenu_createSpace::before {
+    mask-image: url('$(res)/img/element-icons/message/fwd.svg');
+}
+
 .mx_TagTileContextMenu_separator {
     margin-top: 0;
     margin-bottom: 0;

res/css/views/dialogs/_AddExistingToSpaceDialog.scss

@@ -21,16 +21,143 @@ limitations under the License.
     }
 }
 
+.mx_AddExistingToSpace {
+    .mx_SearchBox {
+        // To match the space around the title
+        margin: 0 0 15px 0;
+        flex-grow: 0;
+    }
+
+    .mx_AddExistingToSpace_content {
+        flex-grow: 1;
+    }
+
+    .mx_AddExistingToSpace_noResults {
+        display: block;
+        margin-top: 24px;
+    }
+
+    .mx_AddExistingToSpace_section {
+        &:not(:first-child) {
+            margin-top: 24px;
+        }
+
+        > h3 {
+            margin: 0;
+            color: $secondary-content;
+            font-size: $font-12px;
+            font-weight: $font-semi-bold;
+            line-height: $font-15px;
+        }
+
+        .mx_AccessibleButton_kind_link {
+            font-size: $font-12px;
+            line-height: $font-15px;
+            margin-top: 8px;
+            padding: 0;
+        }
+    }
+
+    .mx_AddExistingToSpace_footer {
+        display: flex;
+        margin-top: 20px;
+
+        > span {
+            flex-grow: 1;
+            font-size: $font-12px;
+            line-height: $font-15px;
+            color: $secondary-content;
+
+            .mx_ProgressBar {
+                height: 8px;
+                width: 100%;
+
+                @mixin ProgressBarBorderRadius 8px;
+            }
+
+            .mx_AddExistingToSpace_progressText {
+                margin-top: 8px;
+                font-size: $font-15px;
+                line-height: $font-24px;
+                color: $primary-content;
+            }
+
+            > * {
+                vertical-align: middle;
+            }
+        }
+
+        .mx_AddExistingToSpace_error {
+            padding-left: 12px;
+
+            > img {
+                align-self: center;
+            }
+
+            .mx_AddExistingToSpace_errorHeading {
+                font-weight: $font-semi-bold;
+                font-size: $font-15px;
+                line-height: $font-18px;
+                color: $notice-primary-color;
+            }
+
+            .mx_AddExistingToSpace_errorCaption {
+                margin-top: 4px;
+                font-size: $font-12px;
+                line-height: $font-15px;
+                color: $primary-content;
+            }
+        }
+
+        .mx_AccessibleButton {
+            display: inline-block;
+            align-self: center;
+        }
+
+        .mx_AccessibleButton_kind_primary {
+            padding: 8px 36px;
+        }
+
+        .mx_AddExistingToSpace_retryButton {
+            margin-left: 12px;
+            padding-left: 24px;
+            position: relative;
+
+            &::before {
+                content: '';
+                position: absolute;
+                background-color: $primary-content;
+                mask-repeat: no-repeat;
+                mask-position: center;
+                mask-size: contain;
+                mask-image: url('$(res)/img/element-icons/retry.svg');
+                width: 18px;
+                height: 18px;
+                left: 0;
+            }
+        }
+
+        .mx_AccessibleButton_kind_link {
+            padding: 0;
+        }
+    }
+}
+
 .mx_AddExistingToSpaceDialog {
     width: 480px;
-    color: $primary-fg-color;
+    color: $primary-content;
     display: flex;
     flex-direction: column;
     flex-wrap: nowrap;
     min-height: 0;
     height: 80vh;
 
-    .mx_Dialog_title {
+    .mx_AddExistingToSpace {
+        display: contents;
+    }
+}
+
+.mx_SubspaceSelector {
     display: flex;
 
     .mx_BaseAvatar_image {
@@ -41,7 +168,7 @@ limitations under the License.
 
     .mx_BaseAvatar {
         display: inline-flex;
-            margin: 5px 16px 5px 5px;
+        margin: auto 16px auto 5px;
         vertical-align: middle;
     }
 
@@ -52,12 +179,6 @@ limitations under the License.
             line-height: $font-22px;
             margin: 0;
         }
-
-            .mx_AddExistingToSpaceDialog_onlySpace {
-                color: $secondary-fg-color;
-                font-size: $font-15px;
-                line-height: $font-24px;
-            }
     }
 
     .mx_Dropdown_input {
@@ -67,7 +188,7 @@ limitations under the License.
             padding-left: 0;
             flex: unset;
             height: unset;
-                color: $secondary-fg-color;
+            color: $secondary-content;
             font-size: $font-15px;
             line-height: $font-24px;
 
@@ -77,7 +198,7 @@ limitations under the License.
         }
 
         .mx_Dropdown_menu {
-                .mx_AddExistingToSpaceDialog_dropdownOptionActive {
+            .mx_SubspaceSelector_dropdownOptionActive {
                 color: $accent-color;
                 padding-right: 32px;
                 position: relative;
@@ -98,99 +219,39 @@ limitations under the License.
             }
         }
     }
-    }
 
-    .mx_SearchBox {
+    .mx_SubspaceSelector_onlySpace {
-        margin: 0;
+        color: $secondary-content;
-        flex-grow: 0;
+        font-size: $font-15px;
-    }
+        line-height: $font-24px;
-
-    .mx_AddExistingToSpaceDialog_errorText {
-        font-weight: $font-semi-bold;
-        font-size: $font-12px;
-        line-height: $font-15px;
-        color: $notice-primary-color;
-        margin-bottom: 28px;
-    }
-
-    .mx_AddExistingToSpaceDialog_content {
-        flex-grow: 1;
-
-        .mx_AddExistingToSpaceDialog_noResults {
-            display: block;
-            margin-top: 24px;
     }
 }
 
-    .mx_AddExistingToSpaceDialog_section {
+.mx_AddExistingToSpace_entry {
-        margin-top: 24px;
-
-        > h3 {
-            margin: 0;
-            color: $secondary-fg-color;
-            font-size: $font-12px;
-            font-weight: $font-semi-bold;
-            line-height: $font-15px;
-        }
-
-        .mx_AddExistingToSpaceDialog_entry {
     display: flex;
     margin-top: 12px;
 
-            .mx_BaseAvatar {
+    .mx_DecoratedRoomAvatar, // we can't target .mx_BaseAvatar here as it'll break the decorated avatar styling
+    .mx_BaseAvatar.mx_RoomAvatar_isSpaceRoom {
         margin-right: 12px;
     }
 
-            .mx_AddExistingToSpaceDialog_entry_name {
+    img.mx_RoomAvatar_isSpaceRoom,
+    .mx_RoomAvatar_isSpaceRoom img {
+        border-radius: 8px;
+    }
+
+    .mx_AddExistingToSpace_entry_name {
         font-size: $font-15px;
         line-height: 30px;
         flex-grow: 1;
+        overflow: hidden;
+        white-space: nowrap;
+        text-overflow: ellipsis;
+        margin-right: 12px;
     }
 
-            .mx_FormButton {
+    .mx_Checkbox {
-                min-width: 92px;
+        align-items: center;
-                font-weight: normal;
-                box-sizing: border-box;
-            }
-        }
-    }
-
-    .mx_AddExistingToSpaceDialog_section_spaces {
-        .mx_BaseAvatar_image {
-            border-radius: 8px;
-        }
-    }
-
-    .mx_AddExistingToSpaceDialog_footer {
-        display: flex;
-        margin-top: 32px;
-
-        > span {
-            flex-grow: 1;
-            font-size: $font-14px;
-            line-height: $font-15px;
-            font-weight: $font-semi-bold;
-
-            .mx_AccessibleButton {
-                font-size: inherit;
-                display: inline-block;
-            }
-
-            > * {
-                vertical-align: middle;
-            }
-        }
-
-        .mx_AccessibleButton {
-            display: inline-block;
-        }
-
-        .mx_AccessibleButton_kind_link {
-            padding: 0;
-        }
-    }
-
-    .mx_FormButton {
-        padding: 8px 22px;
     }
 }

res/css/views/dialogs/_AddressPickerDialog.scss

@@ -29,7 +29,6 @@ limitations under the License.
 .mx_AddressPickerDialog_input:focus {
     height: 26px;
     font-size: $font-14px;
-    font-family: $font-family;
     padding-left: 12px;
     padding-right: 12px;
     margin: 0 !important;

res/css/views/dialogs/_CommunityPrototypeInviteDialog.scss

@@ -65,7 +65,7 @@ limitations under the License.
                 .mx_CommunityPrototypeInviteDialog_personName {
                     font-weight: 600;
                     font-size: $font-14px;
-                    color: $primary-fg-color;
+                    color: $primary-content;
                     margin-left: 7px;
                 }
 

res/css/views/dialogs/_ConfirmUserActionDialog.scss

@@ -34,10 +34,9 @@ limitations under the License.
 }
 
 .mx_ConfirmUserActionDialog_reasonField {
-    font-family: $font-family;
     font-size: $font-14px;
-    color: $primary-fg-color;
+    color: $primary-content;
-    background-color: $primary-bg-color;
+    background-color: $background;
 
     border-radius: 3px;
     border: solid 1px $input-border-color;

res/css/views/dialogs/_CreateGroupDialog.scss

@@ -29,8 +29,8 @@ limitations under the License.
     border-radius: 3px;
     border: 1px solid $input-border-color;
     padding: 9px;
-    color: $primary-fg-color;
+    color: $primary-content;
-    background-color: $primary-bg-color;
+    background-color: $background;
 }
 
 .mx_CreateGroupDialog_input_hasPrefixAndSuffix {

res/css/views/dialogs/_CreateRoomDialog.scss

@@ -55,8 +55,8 @@ limitations under the License.
     border-radius: 3px;
     border: 1px solid $input-border-color;
     padding: 9px;
-    color: $primary-fg-color;
+    color: $primary-content;
-    background-color: $primary-bg-color;
+    background-color: $background;
     width: 100%;
 }
 
@@ -65,7 +65,7 @@ limitations under the License.
 .mx_CreateRoomDialog_aliasContainer {
     display: flex;
     // put margin on container so it can collapse with siblings
-    margin: 10px 0;
+    margin: 24px 0 10px;
 
     .mx_RoomAliasField {
         margin: 0;
@@ -101,10 +101,6 @@ limitations under the License.
         margin-left: 30px;
     }
 
-    .mx_CreateRoomDialog_topic {
-        margin-bottom: 36px;
-    }
-
     .mx_Dialog_content > .mx_SettingsFlag {
         margin-top: 24px;
     }
@@ -114,4 +110,3 @@ limitations under the License.
         font-size: $font-12px;
     }
 }
-

res/css/views/dialogs/_CreateSpaceFromCommunityDialog.scss

@@ -0,0 +1,187 @@
+/*
+Copyright 2021 The Matrix.org Foundation C.I.C.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+.mx_CreateSpaceFromCommunityDialog_wrapper {
+    .mx_Dialog {
+        display: flex;
+        flex-direction: column;
+    }
+}
+
+.mx_CreateSpaceFromCommunityDialog {
+    width: 480px;
+    color: $primary-content;
+    display: flex;
+    flex-direction: column;
+    flex-wrap: nowrap;
+    min-height: 0;
+
+    .mx_CreateSpaceFromCommunityDialog_content {
+        > p {
+            font-size: $font-15px;
+            line-height: $font-24px;
+
+            &:first-of-type {
+                margin-top: 0;
+            }
+
+            &.mx_CreateSpaceFromCommunityDialog_flairNotice {
+                font-size: $font-12px;
+                line-height: $font-15px;
+            }
+        }
+
+        .mx_SpaceBasicSettings {
+            > p {
+                font-size: $font-12px;
+                line-height: $font-15px;
+                margin: 16px 0;
+            }
+
+            .mx_Field_textarea {
+                margin-bottom: 0;
+            }
+        }
+
+        .mx_JoinRuleDropdown .mx_Dropdown_menu {
+            width: auto !important; // override fixed width
+        }
+
+        .mx_CreateSpaceFromCommunityDialog_nonPublicSpacer {
+            height: 63px; // balance the height of the missing room alias field to prevent modal bouncing
+        }
+    }
+
+    .mx_CreateSpaceFromCommunityDialog_footer {
+        display: flex;
+        margin-top: 20px;
+
+        > span {
+            flex-grow: 1;
+            font-size: $font-12px;
+            line-height: $font-15px;
+            color: $secondary-content;
+
+            .mx_ProgressBar {
+                height: 8px;
+                width: 100%;
+
+                @mixin ProgressBarBorderRadius 8px;
+            }
+
+            .mx_CreateSpaceFromCommunityDialog_progressText {
+                margin-top: 8px;
+                font-size: $font-15px;
+                line-height: $font-24px;
+                color: $primary-content;
+            }
+
+            > * {
+                vertical-align: middle;
+            }
+        }
+
+        .mx_CreateSpaceFromCommunityDialog_error {
+            padding-left: 12px;
+
+            > img {
+                align-self: center;
+            }
+
+            .mx_CreateSpaceFromCommunityDialog_errorHeading {
+                font-weight: $font-semi-bold;
+                font-size: $font-15px;
+                line-height: $font-18px;
+                color: $notice-primary-color;
+            }
+
+            .mx_CreateSpaceFromCommunityDialog_errorCaption {
+                margin-top: 4px;
+                font-size: $font-12px;
+                line-height: $font-15px;
+                color: $primary-content;
+            }
+        }
+
+        .mx_AccessibleButton {
+            display: inline-block;
+            align-self: center;
+        }
+
+        .mx_AccessibleButton_kind_primary {
+            padding: 8px 36px;
+            margin-left: 24px;
+        }
+
+        .mx_AccessibleButton_kind_primary_outline {
+            margin-left: auto;
+        }
+
+        .mx_CreateSpaceFromCommunityDialog_retryButton {
+            margin-left: 12px;
+            padding-left: 24px;
+            position: relative;
+
+            &::before {
+                content: '';
+                position: absolute;
+                background-color: $primary-content;
+                mask-repeat: no-repeat;
+                mask-position: center;
+                mask-size: contain;
+                mask-image: url('$(res)/img/element-icons/retry.svg');
+                width: 18px;
+                height: 18px;
+                left: 0;
+            }
+        }
+
+        .mx_AccessibleButton_kind_link {
+            padding: 0;
+        }
+    }
+}
+
+.mx_CreateSpaceFromCommunityDialog_SuccessInfoDialog {
+    .mx_InfoDialog {
+        max-width: 500px;
+    }
+
+    .mx_AccessibleButton_kind_link {
+        padding: 0;
+    }
+
+    .mx_CreateSpaceFromCommunityDialog_SuccessInfoDialog_checkmark {
+        position: relative;
+        border-radius: 50%;
+        border: 3px solid $accent-color;
+        width: 68px;
+        height: 68px;
+        margin: 12px auto 32px;
+
+        &::before {
+            width: inherit;
+            height: inherit;
+            content: '';
+            position: absolute;
+            background-color: $accent-color;
+            mask-repeat: no-repeat;
+            mask-position: center;
+            mask-image: url('$(res)/img/element-icons/roomlist/checkmark.svg');
+            mask-size: 48px;
+        }
+    }
+}

res/css/views/dialogs/_CreateSubspaceDialog.scss

@@ -0,0 +1,81 @@
+/*
+Copyright 2021 The Matrix.org Foundation C.I.C.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+.mx_CreateSubspaceDialog_wrapper {
+    .mx_Dialog {
+        display: flex;
+        flex-direction: column;
+    }
+}
+
+.mx_CreateSubspaceDialog {
+    width: 480px;
+    color: $primary-content;
+    display: flex;
+    flex-direction: column;
+    flex-wrap: nowrap;
+    min-height: 0;
+
+    .mx_CreateSubspaceDialog_content {
+        flex-grow: 1;
+
+        .mx_CreateSubspaceDialog_betaNotice {
+            padding: 12px 16px;
+            border-radius: 8px;
+            background-color: $header-panel-bg-color;
+
+            .mx_BetaCard_betaPill {
+                margin-right: 8px;
+                vertical-align: middle;
+            }
+        }
+
+        .mx_JoinRuleDropdown + p {
+            color: $muted-fg-color;
+            font-size: $font-12px;
+        }
+    }
+
+    .mx_CreateSubspaceDialog_footer {
+        display: flex;
+        margin-top: 20px;
+
+        .mx_CreateSubspaceDialog_footer_prompt {
+            flex-grow: 1;
+            font-size: $font-12px;
+            line-height: $font-15px;
+            color: $secondary-content;
+
+            > * {
+                vertical-align: middle;
+            }
+        }
+
+        .mx_AccessibleButton {
+            display: inline-block;
+            align-self: center;
+        }
+
+        .mx_AccessibleButton_kind_primary {
+            margin-left: 16px;
+            padding: 8px 36px;
+        }
+
+        .mx_AccessibleButton_kind_link {
+            padding: 0;
+        }
+    }
+}

res/css/views/dialogs/_DevtoolsDialog.scss

@@ -55,22 +55,6 @@ limitations under the License.
     padding-right: 24px;
 }
 
-.mx_DevTools_inputCell {
-    display: table-cell;
-    width: 240px;
-}
-
-.mx_DevTools_inputCell input {
-    display: inline-block;
-    border: 0;
-    border-bottom: 1px solid $input-underline-color;
-    padding: 0;
-    width: 240px;
-    color: $input-fg-color;
-    font-family: $font-family;
-    font-size: $font-16px;
-}
-
 .mx_DevTools_textarea {
     font-size: $font-12px;
     max-width: 684px;
@@ -139,7 +123,6 @@ limitations under the License.
     + .mx_DevTools_tgl-btn {
         padding: 2px;
         transition: all .2s ease;
-        font-family: sans-serif;
         perspective: 100px;
         &::after,
         &::before {

res/css/views/dialogs/_FeedbackDialog.scss

@@ -33,7 +33,7 @@ limitations under the License.
         padding-left: 52px;
 
         > p {
-            color: $tertiary-fg-color;
+            color: $tertiary-content;
         }
 
         .mx_AccessibleButton_kind_link {

res/css/views/dialogs/_ForwardDialog.scss

@@ -0,0 +1,163 @@
+/*
+Copyright 2021 Robin Townsend <robin@robin.town>
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+.mx_ForwardDialog {
+    width: 520px;
+    color: $primary-content;
+    display: flex;
+    flex-direction: column;
+    flex-wrap: nowrap;
+    min-height: 0;
+    height: 80vh;
+
+    > h3 {
+        margin: 0 0 6px;
+        color: $secondary-content;
+        font-size: $font-12px;
+        font-weight: $font-semi-bold;
+        line-height: $font-15px;
+    }
+
+    > .mx_ForwardDialog_preview {
+        max-height: 30%;
+        flex-shrink: 0;
+        overflow-y: auto;
+
+        .mx_EventTile[data-layout=bubble] {
+            margin-top: 20px;
+        }
+
+        div {
+            pointer-events: none;
+        }
+
+        .mx_EventTile_msgOption {
+            display: none;
+        }
+
+        // When forwarding messages from encrypted rooms, EventTile will complain
+        // that our preview is unencrypted, which doesn't actually matter
+        .mx_EventTile_e2eIcon_unencrypted {
+            display: none;
+        }
+
+        // We also hide download links to not encourage users to try interacting
+        .mx_MFileBody_download {
+            display: none;
+        }
+    }
+
+    > hr {
+        width: 100%;
+        border: none;
+        border-top: 1px solid $input-border-color;
+        margin: 12px 0;
+    }
+
+    > .mx_ForwardList {
+        display: contents;
+
+        .mx_SearchBox {
+            // To match the space around the title
+            margin: 0 0 15px 0;
+            flex-grow: 0;
+        }
+
+        .mx_ForwardList_content {
+            flex-grow: 1;
+        }
+
+        .mx_ForwardList_noResults {
+            display: block;
+            margin-top: 24px;
+        }
+
+        .mx_ForwardList_results {
+            &:not(:first-child) {
+                margin-top: 24px;
+            }
+
+            .mx_ForwardList_entry {
+                display: flex;
+                justify-content: space-between;
+                height: 32px;
+                padding: 6px;
+                border-radius: 8px;
+
+                &:hover {
+                    background-color: $groupFilterPanel-bg-color;
+                }
+
+                .mx_ForwardList_roomButton {
+                    display: flex;
+                    margin-right: 12px;
+                    min-width: 0;
+
+                    .mx_DecoratedRoomAvatar {
+                        margin-right: 12px;
+                    }
+
+                    .mx_ForwardList_entry_name {
+                        font-size: $font-15px;
+                        line-height: 30px;
+                        overflow: hidden;
+                        white-space: nowrap;
+                        text-overflow: ellipsis;
+                        margin-right: 12px;
+                    }
+                }
+
+                .mx_ForwardList_sendButton {
+                    position: relative;
+
+                    &:not(.mx_ForwardList_canSend) .mx_ForwardList_sendLabel {
+                        // Hide the "Send" label while preserving button size
+                        visibility: hidden;
+                    }
+
+                    .mx_ForwardList_sendIcon, .mx_NotificationBadge {
+                        position: absolute;
+                    }
+
+                    .mx_NotificationBadge {
+                        // Match the failed to send indicator's color with the disabled button
+                        background-color: $button-danger-disabled-fg-color;
+                    }
+
+                    &.mx_ForwardList_sending .mx_ForwardList_sendIcon {
+                        background-color: $button-primary-bg-color;
+                        mask-image: url('$(res)/img/element-icons/circle-sending.svg');
+                        mask-position: center;
+                        mask-repeat: no-repeat;
+                        mask-size: 14px;
+                        width: 14px;
+                        height: 14px;
+                    }
+
+                    &.mx_ForwardList_sent .mx_ForwardList_sendIcon {
+                        background-color: $button-primary-bg-color;
+                        mask-image: url('$(res)/img/element-icons/circle-sent.svg');
+                        mask-position: center;
+                        mask-repeat: no-repeat;
+                        mask-size: 14px;
+                        width: 14px;
+                        height: 14px;
+                    }
+                }
+            }
+        }
+    }
+}

res/css/views/dialogs/_GenericFeatureFeedbackDialog.scss

@@ -0,0 +1,30 @@
+/*
+Copyright 2021 The Matrix.org Foundation C.I.C.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+.mx_GenericFeatureFeedbackDialog {
+    .mx_GenericFeatureFeedbackDialog_subheading {
+        color: $primary-content;
+        font-size: $font-14px;
+        line-height: $font-20px;
+        margin-bottom: 24px;
+    }
+
+    .mx_AccessibleButton_kind_link {
+        padding: 0;
+        font-size: inherit;
+        line-height: inherit;
+    }
+}

res/css/views/dialogs/_HostSignupDialog.scss

@@ -70,11 +70,11 @@ limitations under the License.
 }
 
 .mx_HostSignupDialog_text_dark {
-    color: $primary-fg-color;
+    color: $primary-content;
 }
 
 .mx_HostSignupDialog_text_light {
-    color: $secondary-fg-color;
+    color: $secondary-content;
 }
 
 .mx_HostSignup_maximize_button {

res/css/views/dialogs/_InviteDialog.scss

@@ -14,9 +14,16 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
+.mx_InviteDialog_transferWrapper .mx_Dialog {
+    padding-bottom: 16px;
+}
+
 .mx_InviteDialog_addressBar {
     display: flex;
     flex-direction: row;
+    // Right margin for the design. We could apply this to the whole dialog, but then the scrollbar
+    // for the user section gets weird.
+    margin: 8px 45px 0 0;
 
     .mx_InviteDialog_editor {
         flex: 1;
@@ -49,7 +56,7 @@ limitations under the License.
             box-sizing: border-box;
             min-width: 40%;
             flex: 1 !important;
-            color: $primary-fg-color !important;
+            color: $primary-content !important;
         }
     }
 
@@ -73,7 +80,7 @@ limitations under the License.
 }
 
 .mx_InviteDialog_section {
-    padding-bottom: 10px;
+    padding-bottom: 4px;
 
     h3 {
         font-size: $font-12px;
@@ -82,6 +89,14 @@ limitations under the License.
         text-transform: uppercase;
     }
 
+    > p {
+        margin: 0;
+    }
+
+    > span {
+        color: $primary-content;
+    }
+
     .mx_InviteDialog_subname {
         margin-bottom: 10px;
         margin-top: -10px; // HACK: Positioning with margins is bad
@@ -90,6 +105,63 @@ limitations under the License.
     }
 }
 
+.mx_InviteDialog_section_hidden_suggestions_disclaimer {
+    padding: 8px 0 16px 0;
+    font-size: $font-14px;
+
+    > span {
+        color: $primary-content;
+        font-weight: 600;
+    }
+
+    > p {
+        margin: 0;
+    }
+}
+
+.mx_InviteDialog_footer {
+    border-top: 1px solid $input-border-color;
+
+    > h3 {
+        margin: 12px 0;
+        font-size: $font-12px;
+        color: $muted-fg-color;
+        font-weight: bold;
+        text-transform: uppercase;
+    }
+
+    .mx_InviteDialog_footer_link {
+        display: flex;
+        justify-content: space-between;
+        border-radius: 4px;
+        border: solid 1px $light-fg-color;
+        padding: 8px;
+
+        > a {
+            text-decoration: none;
+            flex-shrink: 1;
+            overflow: hidden;
+            text-overflow: ellipsis;
+        }
+    }
+
+    .mx_InviteDialog_footer_link_copy {
+        flex-shrink: 0;
+        cursor: pointer;
+        margin-left: 20px;
+        display: inherit;
+
+        > div {
+            mask-image: url($copy-button-url);
+            background-color: $message-action-bar-fg-color;
+            margin-left: 5px;
+            width: 20px;
+            height: 20px;
+            background-repeat: no-repeat;
+        }
+    }
+}
+
 .mx_InviteDialog_roomTile {
     cursor: pointer;
     padding: 5px 10px;
@@ -142,12 +214,13 @@ limitations under the License.
 
     .mx_InviteDialog_roomTile_nameStack {
         display: inline-block;
+        overflow: hidden;
     }
 
     .mx_InviteDialog_roomTile_name {
         font-weight: 600;
         font-size: $font-14px;
-        color: $primary-fg-color;
+        color: $primary-content;
         margin-left: 7px;
     }
 
@@ -157,6 +230,13 @@ limitations under the License.
         margin-left: 7px;
     }
 
+    .mx_InviteDialog_roomTile_name,
+    .mx_InviteDialog_roomTile_userId {
+        overflow: hidden;
+        text-overflow: ellipsis;
+        white-space: nowrap;
+    }
+
     .mx_InviteDialog_roomTile_time {
         text-align: right;
         font-size: $font-12px;
@@ -210,26 +290,165 @@ limitations under the License.
     }
 }
 
-.mx_InviteDialog {
+.mx_InviteDialog_other {
     // Prevent the dialog from jumping around randomly when elements change.
-    height: 590px;
+    height: 600px;
     padding-left: 20px; // the design wants some padding on the left
+
+    .mx_InviteDialog_userSections {
+        height: calc(100% - 115px); // mx_InviteDialog's height minus some for the upper and lower elements
+    }
+}
+
+.mx_InviteDialog_content {
+    height: calc(100% - 36px); // full height minus the size of the header
+    overflow: hidden;
+}
+
+.mx_InviteDialog_transfer {
+    width: 496px;
+    height: 466px;
+    flex-direction: column;
+
+    .mx_InviteDialog_content {
+        flex-direction: column;
+
+        .mx_TabbedView {
+            height: calc(100% - 60px);
+        }
+        overflow: visible;
+    }
+
+    .mx_InviteDialog_addressBar {
+        margin-top: 8px;
+    }
+
+    input[type="checkbox"] {
+        margin-right: 8px;
+    }
 }
 
 .mx_InviteDialog_userSections {
-    margin-top: 10px;
+    margin-top: 4px;
     overflow-y: auto;
-    padding-right: 45px;
+    padding: 0 45px 4px 0;
-    height: 455px; // mx_InviteDialog's height minus some for the upper elements
 }
 
-// Right margin for the design. We could apply this to the whole dialog, but then the scrollbar
+.mx_InviteDialog_hasFooter .mx_InviteDialog_userSections {
-// for the user section gets weird.
+    height: calc(100% - 175px);
-.mx_InviteDialog_helpText,
+}
-.mx_InviteDialog_addressBar {
+
-    margin-right: 45px;
+.mx_InviteDialog_helpText {
+    margin: 0;
 }
 
 .mx_InviteDialog_helpText .mx_AccessibleButton_kind_link {
     padding: 0;
 }
+
+.mx_InviteDialog_dialPad .mx_InviteDialog_dialPadField {
+    border-top: 0;
+    border-left: 0;
+    border-right: 0;
+    border-radius: 0;
+    margin-top: 0;
+    border-color: $quaternary-content;
+
+    input {
+        font-size: 18px;
+        font-weight: 600;
+        padding-top: 0;
+    }
+}
+
+.mx_InviteDialog_dialPad .mx_InviteDialog_dialPadField:focus-within {
+    border-color: $accent-color;
+}
+
+.mx_InviteDialog_dialPadField .mx_Field_postfix {
+    /* Remove border separator between postfix and field content */
+    border-left: none;
+}
+
+.mx_InviteDialog_dialPad {
+    width: 224px;
+    margin-top: 16px;
+    margin-left: auto;
+    margin-right: auto;
+}
+
+.mx_InviteDialog_dialPad .mx_DialPad {
+    row-gap: 16px;
+    column-gap: 48px;
+
+    margin-left: auto;
+    margin-right: auto;
+}
+
+.mx_InviteDialog_transferConsultConnect {
+    padding-top: 16px;
+    /* This wants a drop shadow the full width of the dialog, so relative-position it
+     * and make it wider, then compensate with padding
+     */
+    position: relative;
+    width: 496px;
+    left: -24px;
+    padding-left: 24px;
+    padding-right: 24px;
+    border-top: 1px solid $message-body-panel-bg-color;
+
+    display: flex;
+    flex-direction: row;
+    align-items: center;
+}
+
+.mx_InviteDialog_transferConsultConnect_pushRight {
+    margin-left: auto;
+}
+
+.mx_InviteDialog_userDirectoryIcon::before {
+    mask-image: url('$(res)/img/voip/tab-userdirectory.svg');
+}
+
+.mx_InviteDialog_dialPadIcon::before {
+    mask-image: url('$(res)/img/voip/tab-dialpad.svg');
+}
+
+.mx_InviteDialog_multiInviterError {
+    > h4 {
+        font-size: $font-15px;
+        line-height: $font-24px;
+        color: $secondary-content;
+        font-weight: normal;
+    }
+
+    > div {
+        .mx_InviteDialog_multiInviterError_entry {
+            margin-bottom: 24px;
+
+            .mx_InviteDialog_multiInviterError_entry_userProfile {
+                .mx_InviteDialog_multiInviterError_entry_name {
+                    margin-left: 6px;
+                    font-size: $font-15px;
+                    line-height: $font-24px;
+                    font-weight: $font-semi-bold;
+                    color: $primary-content;
+                }
+
+                .mx_InviteDialog_multiInviterError_entry_userId {
+                    margin-left: 6px;
+                    font-size: $font-12px;
+                    line-height: $font-15px;
+                    color: $tertiary-content;
+                }
+            }
+
+            .mx_InviteDialog_multiInviterError_entry_error {
+                margin-left: 32px;
+                font-size: $font-15px;
+                line-height: $font-24px;
+                color: $notice-primary-color;
+            }
+        }
+    }
+}

res/css/views/dialogs/_JoinRuleDropdown.scss

@@ -0,0 +1,67 @@
+/*
+Copyright 2021 The Matrix.org Foundation C.I.C.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+.mx_JoinRuleDropdown {
+    margin-bottom: 8px;
+    font-weight: normal;
+    font-family: $font-family;
+    font-size: $font-14px;
+    color: $primary-content;
+
+    .mx_Dropdown_input {
+        border: 1px solid $input-border-color;
+    }
+
+    .mx_Dropdown_option {
+        font-size: $font-14px;
+        line-height: $font-32px;
+        height: 32px;
+        min-height: 32px;
+
+        > div {
+            padding-left: 30px;
+            position: relative;
+
+            &::before {
+                content: "";
+                position: absolute;
+                height: 16px;
+                width: 16px;
+                left: 6px;
+                top: 8px;
+                mask-repeat: no-repeat;
+                mask-position: center;
+                background-color: $secondary-content;
+            }
+        }
+    }
+
+    .mx_JoinRuleDropdown_invite::before {
+        mask-image: url('$(res)/img/element-icons/lock.svg');
+        mask-size: contain;
+    }
+
+    .mx_JoinRuleDropdown_public::before {
+        mask-image: url('$(res)/img/globe.svg');
+        mask-size: 12px;
+    }
+
+    .mx_JoinRuleDropdown_restricted::before {
+        mask-image: url('$(res)/img/element-icons/community-members.svg');
+        mask-size: contain;
+    }
+}
+

res/css/views/dialogs/_LeaveSpaceDialog.scss

@@ -0,0 +1,96 @@
+/*
+Copyright 2021 The Matrix.org Foundation C.I.C.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+.mx_LeaveSpaceDialog_wrapper {
+    .mx_Dialog {
+        display: flex;
+        flex-direction: column;
+        padding: 24px 32px;
+    }
+}
+
+.mx_LeaveSpaceDialog {
+    width: 440px;
+    display: flex;
+    flex-direction: column;
+    flex-wrap: nowrap;
+    max-height: 520px;
+
+    .mx_Dialog_content {
+        flex-grow: 1;
+        margin: 0;
+        overflow-y: auto;
+
+        .mx_RadioButton + .mx_RadioButton {
+            margin-top: 16px;
+        }
+
+        .mx_SearchBox {
+            // To match the space around the title
+            margin: 0 0 15px 0;
+            flex-grow: 0;
+            border-radius: 8px;
+        }
+
+        .mx_LeaveSpaceDialog_noResults {
+            display: block;
+            margin-top: 24px;
+        }
+
+        .mx_LeaveSpaceDialog_section {
+            margin: 16px 0;
+        }
+
+        .mx_LeaveSpaceDialog_section_warning {
+            position: relative;
+            border-radius: 8px;
+            margin: 12px 0 0;
+            padding: 12px 8px 12px 42px;
+            background-color: $header-panel-bg-color;
+
+            font-size: $font-12px;
+            line-height: $font-15px;
+            color: $secondary-content;
+
+            &::before {
+                content: '';
+                position: absolute;
+                left: 10px;
+                top: calc(50% - 8px); // vertical centering
+                height: 16px;
+                width: 16px;
+                background-color: $secondary-content;
+                mask-repeat: no-repeat;
+                mask-size: contain;
+                mask-image: url('$(res)/img/element-icons/room/room-summary.svg');
+                mask-position: center;
+            }
+        }
+
+        > p {
+            color: $primary-content;
+        }
+    }
+
+    .mx_Dialog_buttons {
+        margin-top: 20px;
+
+        .mx_Dialog_primary {
+            background-color: $notice-primary-color !important; // override default colour
+            border-color: $notice-primary-color;
+        }
+    }
+}

res/css/views/dialogs/_ManageRestrictedJoinRuleDialog.scss

@@ -0,0 +1,150 @@
+/*
+Copyright 2021 The Matrix.org Foundation C.I.C.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+.mx_ManageRestrictedJoinRuleDialog_wrapper {
+    .mx_Dialog {
+        display: flex;
+        flex-direction: column;
+    }
+}
+
+.mx_ManageRestrictedJoinRuleDialog {
+    width: 480px;
+    color: $primary-content;
+    display: flex;
+    flex-direction: column;
+    flex-wrap: nowrap;
+    min-height: 0;
+    height: 60vh;
+
+    .mx_SearchBox {
+        // To match the space around the title
+        margin: 0 0 15px 0;
+        flex-grow: 0;
+    }
+
+    .mx_ManageRestrictedJoinRuleDialog_content {
+        flex-grow: 1;
+    }
+
+    .mx_ManageRestrictedJoinRuleDialog_noResults {
+        display: block;
+        margin-top: 24px;
+    }
+
+    .mx_ManageRestrictedJoinRuleDialog_section {
+        &:not(:first-child) {
+            margin-top: 24px;
+        }
+
+        > h3 {
+            margin: 0;
+            color: $secondary-content;
+            font-size: $font-12px;
+            font-weight: $font-semi-bold;
+            line-height: $font-15px;
+        }
+
+        .mx_ManageRestrictedJoinRuleDialog_entry {
+            display: flex;
+            margin-top: 12px;
+
+            > div {
+                flex-grow: 1;
+            }
+
+            img.mx_RoomAvatar_isSpaceRoom,
+            .mx_RoomAvatar_isSpaceRoom img {
+                border-radius: 4px;
+            }
+
+            .mx_ManageRestrictedJoinRuleDialog_entry_name {
+                margin: 0 8px;
+                font-size: $font-15px;
+                line-height: 30px;
+                flex-grow: 1;
+                overflow: hidden;
+                white-space: nowrap;
+                text-overflow: ellipsis;
+            }
+
+            .mx_ManageRestrictedJoinRuleDialog_entry_description {
+                margin-top: 8px;
+                font-size: $font-12px;
+                line-height: $font-15px;
+                color: $tertiary-content;
+            }
+
+            .mx_Checkbox {
+                align-items: center;
+            }
+        }
+    }
+
+    .mx_ManageRestrictedJoinRuleDialog_section_spaces {
+        .mx_BaseAvatar {
+            margin-right: 12px;
+        }
+
+        .mx_BaseAvatar_image {
+            border-radius: 8px;
+        }
+    }
+
+    .mx_ManageRestrictedJoinRuleDialog_section_info {
+        position: relative;
+        border-radius: 8px;
+        margin: 12px 0;
+        padding: 8px 8px 8px 42px;
+        background-color: $header-panel-bg-color;
+
+        font-size: $font-12px;
+        line-height: $font-15px;
+        color: $secondary-content;
+
+        &::before {
+            content: '';
+            position: absolute;
+            left: 10px;
+            top: calc(50% - 8px); // vertical centering
+            height: 16px;
+            width: 16px;
+            background-color: $secondary-content;
+            mask-repeat: no-repeat;
+            mask-size: contain;
+            mask-image: url('$(res)/img/element-icons/room/room-summary.svg');
+            mask-position: center;
+        }
+    }
+
+    .mx_ManageRestrictedJoinRuleDialog_footer {
+        margin-top: 20px;
+
+        .mx_ManageRestrictedJoinRuleDialog_footer_buttons {
+            display: flex;
+            width: max-content;
+            margin-left: auto;
+
+            .mx_AccessibleButton {
+                display: inline-block;
+
+                & + .mx_AccessibleButton {
+                    margin-left: 24px;
+                }
+            }
+        }
+    }
+}

res/css/views/dialogs/_MessageEditHistoryDialog.scss

@@ -37,7 +37,7 @@ limitations under the License.
     list-style-type: none;
     font-size: $font-14px;
     padding: 0;
-    color: $primary-fg-color;
+    color: $primary-content;
 
     span.mx_EditHistoryMessage_deletion, span.mx_EditHistoryMessage_insertion {
         padding: 0px 2px;

res/css/views/dialogs/_RegistrationEmailPromptDialog.scss

@@ -19,7 +19,7 @@ limitations under the License.
 
     .mx_Dialog_content {
         margin-bottom: 24px;
-        color: $tertiary-fg-color;
+        color: $tertiary-content;
     }
 
     .mx_Dialog_primary {

res/css/views/dialogs/_RoomSettingsDialogBridges.scss

@@ -72,7 +72,7 @@ limitations under the License.
             margin-top: 0px;
             margin-bottom: 0px;
             font-size: 16pt;
-            color: $primary-fg-color;
+            color: $primary-content;
         }
 
         > * {
@@ -81,7 +81,7 @@ limitations under the License.
         }
 
         .workspace-channel-details {
-            color: $primary-fg-color;
+            color: $primary-content;
             font-weight: 600;
 
             .channel {

res/css/views/dialogs/_ServerOfflineDialog.scss

@@ -17,10 +17,10 @@ limitations under the License.
 .mx_ServerOfflineDialog {
     .mx_ServerOfflineDialog_content {
         padding-right: 85px;
-        color: $primary-fg-color;
+        color: $primary-content;
 
         hr {
-            border-color: $primary-fg-color;
+            border-color: $primary-content;
             opacity: 0.1;
             border-bottom: none;
         }

res/css/views/dialogs/_ServerPickerDialog.scss

@@ -22,7 +22,7 @@ limitations under the License.
         margin-bottom: 0;
 
         > p {
-            color: $secondary-fg-color;
+            color: $secondary-content;
             font-size: $font-14px;
             margin: 16px 0;
 
@@ -38,7 +38,7 @@ limitations under the License.
         > h4 {
             font-size: $font-15px;
             font-weight: $font-semi-bold;
-            color: $secondary-fg-color;
+            color: $secondary-content;
             margin-left: 8px;
         }
 

res/css/views/dialogs/_SetEmailDialog.scss

@@ -19,7 +19,7 @@ limitations under the License.
     border: 1px solid $input-border-color;
     padding: 9px;
     color: $input-fg-color;
-    background-color: $primary-bg-color;
+    background-color: $background;
     font-size: $font-15px;
     width: 100%;
     max-width: 280px;

res/css/views/dialogs/_SettingsDialog.scss

@@ -15,7 +15,7 @@ limitations under the License.
 */
 
 // Not actually a component but things shared by settings components
-.mx_UserSettingsDialog, .mx_RoomSettingsDialog {
+.mx_UserSettingsDialog, .mx_RoomSettingsDialog, .mx_SpaceSettingsDialog {
     width: 90vw;
     max-width: 1000px;
     // set the height too since tabbed view scrolls itself.

res/css/views/dialogs/_ShareDialog.scss

@@ -50,7 +50,8 @@ limitations under the License.
     margin-left: 20px;
     display: inherit;
 }
-.mx_ShareDialog_matrixto_copy > div {
+.mx_ShareDialog_matrixto_copy::after {
+    content: "";
     mask-image: url($copy-button-url);
     background-color: $message-action-bar-fg-color;
     margin-left: 5px;

res/css/views/dialogs/_SpaceSettingsDialog.scss

@@ -15,8 +15,7 @@ limitations under the License.
 */
 
 .mx_SpaceSettingsDialog {
-    width: 480px;
+    color: $primary-content;
-    color: $primary-fg-color;
 
     .mx_SpaceSettings_errorText {
         font-weight: $font-semi-bold;
@@ -32,8 +31,44 @@ limitations under the License.
         margin-left: 16px;
     }
 
-    .mx_AccessibleButton_kind_danger {
+    .mx_SettingsTab_section {
-        margin-top: 28px;
+        .mx_SettingsTab_section_caption {
+            margin-top: 12px;
+            margin-bottom: 20px;
+        }
+
+        & + .mx_SettingsTab_subheading {
+            border-top: 1px solid $message-body-panel-bg-color;
+            margin-top: 0;
+            padding-top: 24px;
+        }
+
+        .mx_RadioButton {
+            margin-top: 8px;
+            margin-bottom: 4px;
+
+            .mx_RadioButton_content {
+                font-weight: $font-semi-bold;
+                line-height: $font-18px;
+                color: $primary-content;
+            }
+
+            & + span {
+                font-size: $font-15px;
+                line-height: $font-18px;
+                color: $secondary-content;
+                margin-left: 26px;
+            }
+        }
+
+        .mx_SettingsTab_showAdvanced {
+            margin: 16px 0;
+            padding: 0;
+        }
+
+        .mx_SettingsFlag {
+            margin-top: 24px;
+        }
     }
 
     .mx_SpaceSettingsDialog_buttons {
@@ -52,4 +87,14 @@ limitations under the License.
     .mx_AccessibleButton_hasKind {
         padding: 8px 22px;
     }
+
+    .mx_TabbedView_tabLabel {
+        .mx_SpaceSettingsDialog_generalIcon::before {
+            mask-image: url('$(res)/img/element-icons/settings.svg');
+        }
+
+        .mx_SpaceSettingsDialog_visibilityIcon::before {
+            mask-image: url('$(res)/img/element-icons/eye.svg');
+        }
+    }
 }

res/css/views/dialogs/_UntrustedDeviceDialog.scss

@@ -1,5 +1,5 @@
 /*
-Copyright 2020 The Matrix.org Foundation C.I.C.
+Copyright 2021 The Matrix.org Foundation C.I.C.
 
 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.
@@ -14,17 +14,13 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
-.mx_PulsedAvatar {
+.mx_UntrustedDeviceDialog {
-    @keyframes shadow-pulse {
+    .mx_Dialog_title {
-        0% {
+        display: flex;
-            box-shadow: 0 0 0 0px rgba($accent-color, 0.2);
+        align-items: center;
-        }
-        100% {
-            box-shadow: 0 0 0 6px rgba($accent-color, 0);
-        }
-    }
 
-    img {
+        .mx_E2EIcon {
-        animation: shadow-pulse 1s infinite;
+            margin-left: 0;
+        }
     }
 }

res/css/views/dialogs/security/_AccessSecretStorageDialog.scss

@@ -28,6 +28,7 @@ limitations under the License.
         left: 0;
         top: 2px; // alignment
         background-image: url("$(res)/img/element-icons/warning-badge.svg");
+        background-size: contain;
     }
 
     .mx_AccessSecretStorageDialog_reset_link {
@@ -43,7 +44,7 @@ limitations under the License.
     margin-right: 8px;
     position: relative;
     top: 5px;
-    background-color: $primary-fg-color;
+    background-color: $primary-content;
 }
 
 .mx_AccessSecretStorageDialog_resetBadge::before {

res/css/views/dialogs/security/_CreateSecretStorageDialog.scss

@@ -56,7 +56,7 @@ limitations under the License.
     margin-right: 8px;
     position: relative;
     top: 5px;
-    background-color: $primary-fg-color;
+    background-color: $primary-content;
 }
 
 .mx_CreateSecretStorageDialog_secureBackupTitle::before {
@@ -101,7 +101,7 @@ limitations under the License.
     margin-right: 8px;
     position: relative;
     top: 5px;
-    background-color: $primary-fg-color;
+    background-color: $primary-content;
 }
 
 .mx_CreateSecretStorageDialog_optionIcon_securePhrase {

res/css/views/dialogs/security/_KeyBackupFailedDialog.scss

@@ -26,7 +26,7 @@ limitations under the License.
     &::before {
         mask: url("$(res)/img/e2e/lock-warning-filled.svg");
         mask-repeat: no-repeat;
-        background-color: $primary-fg-color;
+        background-color: $primary-content;
         content: "";
         position: absolute;
         top: -6px;

res/css/views/directory/_NetworkDropdown.scss

@@ -34,7 +34,7 @@ limitations under the License.
     box-sizing: border-box;
     border-radius: 4px;
     border: 1px solid $dialog-close-fg-color;
-    background-color: $primary-bg-color;
+    background-color: $background;
     max-height: calc(100vh - 20px); // allow 10px padding on both top and bottom
     overflow-y: auto;
 }
@@ -153,7 +153,7 @@ limitations under the License.
         mask-position: center;
         mask-size: contain;
         mask-image: url('$(res)/img/feather-customised/chevron-down-thin.svg');
-        background-color: $primary-fg-color;
+        background-color: $primary-content;
     }
 
     .mx_NetworkDropdown_handle_server {

res/css/views/elements/_AccessibleButton.scss

@@ -72,16 +72,20 @@ limitations under the License.
 
 .mx_AccessibleButton_kind_danger_outline {
     color: $button-danger-bg-color;
-    background-color: $button-secondary-bg-color;
+    background-color: transparent;
     border: 1px solid $button-danger-bg-color;
 }
 
-.mx_AccessibleButton_kind_danger.mx_AccessibleButton_disabled,
+.mx_AccessibleButton_kind_danger.mx_AccessibleButton_disabled {
-.mx_AccessibleButton_kind_danger_outline.mx_AccessibleButton_disabled {
     color: $button-danger-disabled-fg-color;
     background-color: $button-danger-disabled-bg-color;
 }
 
+.mx_AccessibleButton_kind_danger_outline.mx_AccessibleButton_disabled {
+    color: $button-danger-disabled-bg-color;
+    border-color: $button-danger-disabled-bg-color;
+}
+
 .mx_AccessibleButton_hasKind.mx_AccessibleButton_kind_danger_sm {
     padding: 5px 12px;
     color: $button-danger-fg-color;

res/css/views/elements/_AddressSelector.scss

@@ -16,7 +16,7 @@ limitations under the License.
 
 .mx_AddressSelector {
     position: absolute;
-    background-color: $primary-bg-color;
+    background-color: $background;
     width: 485px;
     max-height: 116px;
     overflow-y: auto;
@@ -31,8 +31,8 @@ limitations under the License.
 }
 
 .mx_AddressSelector_addressListElement .mx_AddressTile {
-    background-color: $primary-bg-color;
+    background-color: $background;
-    border: solid 1px $primary-bg-color;
+    border: solid 1px $background;
 }
 
 .mx_AddressSelector_addressListElement.mx_AddressSelector_selected {

res/css/views/elements/_AddressTile.scss

@@ -20,7 +20,7 @@ limitations under the License.
     background-color: rgba(74, 73, 74, 0.1);
     border: solid 1px $input-border-color;
     line-height: $font-26px;
-    color: $primary-fg-color;
+    color: $primary-content;
     font-size: $font-14px;
     font-weight: normal;
     margin-right: 4px;

res/css/views/elements/_DesktopCapturerSourcePicker.scss

@@ -16,57 +16,41 @@ limitations under the License.
 
 .mx_desktopCapturerSourcePicker {
     overflow: hidden;
-}
 
-.mx_desktopCapturerSourcePicker_tabLabels {
+    .mx_desktopCapturerSourcePicker_tab {
-    display: flex;
-    padding: 0 0 8px 0;
-}
-
-.mx_desktopCapturerSourcePicker_tabLabel,
-.mx_desktopCapturerSourcePicker_tabLabel_selected {
-    width: 100%;
-    text-align: center;
-    border-radius: 8px;
-    padding: 8px 0;
-    font-size: $font-13px;
-}
-
-.mx_desktopCapturerSourcePicker_tabLabel_selected {
-    background-color: $tab-label-active-bg-color;
-    color: $tab-label-active-fg-color;
-}
-
-.mx_desktopCapturerSourcePicker_panel {
         display: flex;
         flex-wrap: wrap;
         justify-content: center;
         align-items: flex-start;
         height: 500px;
         overflow: overlay;
-}
 
-.mx_desktopCapturerSourcePicker_stream_button {
+        .mx_desktopCapturerSourcePicker_source {
+            width: 50%;
             display: flex;
             flex-direction: column;
-    margin: 8px;
-    border-radius: 4px;
-}
 
-.mx_desktopCapturerSourcePicker_stream_button:hover,
+            .mx_desktopCapturerSourcePicker_source_thumbnail {
-.mx_desktopCapturerSourcePicker_stream_button:focus {
-    background: $roomtile-selected-bg-color;
-}
-
-.mx_desktopCapturerSourcePicker_stream_thumbnail {
                 margin: 4px;
-    width: 312px;
+                padding: 4px;
+                border-width: 2px;
+                border-radius: 8px;
+                border-style: solid;
+                border-color: transparent;
+
+                &.mx_desktopCapturerSourcePicker_source_thumbnail_selected,
+                &:hover,
+                &:focus {
+                    border-color: $accent-color;
+                }
             }
 
-.mx_desktopCapturerSourcePicker_stream_name {
+            .mx_desktopCapturerSourcePicker_source_name {
                 margin: 0 4px;
                 white-space: nowrap;
                 text-overflow: ellipsis;
                 overflow: hidden;
-    width: 312px;
+            }
+        }
+    }
 }

res/css/views/elements/_DialPadBackspaceButton.scss

@@ -0,0 +1,40 @@
+/*
+Copyright 2021 The Matrix.org Foundation C.I.C.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+.mx_DialPadBackspaceButton {
+    position: relative;
+    height: 28px;
+    width: 28px;
+
+    &::before {
+        /* force this element to appear on the DOM */
+        content: "";
+
+        background-color: #8D97A5;
+        width: inherit;
+        height: inherit;
+        top: 0px;
+        left: 0px;
+        position: absolute;
+        display: inline-block;
+        vertical-align: middle;
+
+        mask-image: url('$(res)/img/element-icons/call/delete.svg');
+        mask-position: 8px;
+        mask-size: 20px;
+        mask-repeat: no-repeat;
+    }
+}