!752

sbool error;
static JFrame frame;

// returns false if done, otherwise calls whenDone later
static bool action(S s, final Runnable whenDone) {
  new Matches m;
  
  if "Bot shows color *" {
    showColor(colorFromText(m.unq(0)));
    false;
  }

  throw fail("unknown command: " + quote(s));
}

svoid showColor(Color color) {
  if (frame == null)
    frame = showCenterFrame("Color Bot!", 200, 200);
  setFrameContents(frame, singleColorPanel(color));
}

Began life as a copy of #1003351