@Override
  protected Dimension getDarculaButtonSize(JComponent c, Dimension prefSize) {
    if (UIUtil.isHelpButton(c)) {
      Icon icon = MacIconLookup.getIcon("help");
      return new Dimension(icon.getIconWidth(), icon.getIconHeight());
    }
    else {
      return super.getDarculaButtonSize(c, prefSize);
    }
  }
@Override
  protected Dimension getDarculaButtonSize(JComponent c, Dimension prefSize)