static JComponent getTitlePaneComponent(Window window) {
  if (!substanceLookAndFeelEnabled()) ret null;
  
	JRootPane rootPane = null;
	if (window instanceof JFrame)
		rootPane = ((JFrame) window).getRootPane();
	if (window instanceof JDialog)
		rootPane = ((JDialog) window).getRootPane();
	if (rootPane != null) {
		O /*SubstanceRootPaneUI*/ ui = rootPane.getUI();
		return (JComponent) call(ui, "getTitlePane");
	}
	return null;
}