closeIcon = UIManager.getIcon("InternalFrame.closeIcon"); iconIcon = UIManager.getIcon("InternalFrame.iconifyIcon"); maxIcon = UIManager.getIcon("InternalFrame.maximizeIcon");
  protected void installDefaults()  {    // FIXME: move icons to defaults.    UIDefaults defaults = UIManager.getLookAndFeelDefaults();    setFont(defaults.getFont("InternalFrame.titleFont"));    selectedTextColor = defaults.getColor("InternalFrame.activeTitleForeground");    selectedTitleColor = defaults.getColor("InternalFrame.activeTitleBackground");    notSelectedTextColor = defaults.getColor("InternalFrame.inactiveTitleForeground");    notSelectedTitleColor = defaults.getColor("InternalFrame.inactiveTitleBackground");  }