private static Icon createColoredIcon(Color color) {
    Icon icon = icons_cache.get(color);
    if (icon != null) return icon;
    final BufferedImage image = GraphicsEnvironment.getLocalGraphicsEnvironment()
      .getDefaultScreenDevice().getDefaultConfiguration()
      .createCompatibleImage(16, 16, Transparency.TRANSLUCENT);
    final Graphics g = image.getGraphics();
    g.setColor(color);
    g.fillRect(0, 0, 16, 16);
    g.dispose();
    icon = new ImageIcon(image);
    icons_cache.put(color, icon);
    return icon;
  }
private static Icon createColoredIcon(Color color)