Rename base skin to vector

src/skins/vector/img/p/piechart.pde

@@ -0,0 +1,19 @@
+// a trivial processing.org snippet to generate these
+// using java2d (ugh).  Peity and JS might have been
+// a better idea.  Or SVG.
+
+size(48, 48);
+g = createGraphics(48, 48, JAVA2D);
+
+for (int i = 0; i <= 20; i++) {
+  g.beginDraw();
+  g.background(0.0, 0.0);
+  g.smooth();
+  g.strokeCap(SQUARE);
+  g.strokeWeight(3);
+  g.stroke(0x80, 0xcf, 0xf4, 255.0);
+  g.fill(0.0, 0.0);
+  g.arc(24, 24, 43, 43, -PI/2, -PI/2 + (i*2*PI/20.0));
+  g.save("p" + i + ".png");
+  g.endDraw();
+}