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