if (enabled) { setBackground(comboBox.getBackground()); setForeground(comboBox.getForeground()); } else { setBackground(UIManager.getColor("ComboBox.disabledBackground")); setForeground(UIManager.getColor("ComboBox.disabledForeground")); }
  public void setEnabled(boolean enabled)  {    super.setEnabled(enabled);    // TODO: figure out what this might need to be used for    // perhaps it has something to do with the button's icon and/or border?  }