Support 256 color

src/renderer/Color.ts

@@ -21,3 +21,34 @@ export const TANGO_COLORS = [
   '#34e2e2',
   '#eeeeec'
 ];
+
+export const COLORS: string[] = (function(): string[] {
+  let colors = TANGO_COLORS.slice();
+  let r = [0x00, 0x5f, 0x87, 0xaf, 0xd7, 0xff];
+  let i;
+
+  // 16-231
+  i = 0;
+  for (; i < 216; i++) {
+    out(r[(i / 36) % 6 | 0], r[(i / 6) % 6 | 0], r[i % 6]);
+  }
+
+  // 232-255 (grey)
+  i = 0;
+  let c: number;
+  for (; i < 24; i++) {
+    c = 8 + i * 10;
+    out(c, c, c);
+  }
+
+  function out(r: number, g: number, b: number): void {
+    colors.push('#' + hex(r) + hex(g) + hex(b));
+  }
+
+  function hex(c: number): string {
+    let s = c.toString(16);
+    return s.length < 2 ? '0' + s : s;
+  }
+
+  return colors;
+})();