Bug 63420 [R21PRES] Flash on tab switch
bundles/org.eclipse.ui.presentations.r21/src/org/eclipse/ui/internal/presentations/R21BasicStackPresentation.java
private R21PaneFolder paneFolder;
	private IPresentablePart current;
	private boolean activeState = false;
	private MenuManager systemMenuManager = new MenuManager();
	private CLabel titleLabel;
	private boolean shellActive = true;
	private final static String TAB_DATA = R21BasicStackPresentation.class
			.getName()
			+ ".partId"; $NON-NLS-1$
	
	
	
	
	 }
	
	
	
				
	
	 }
	 };
		
	private MouseListener mouseListener = new MouseAdapter() {
		public void mouseDown(MouseEvent e) {
			if (e.widget instanceof Control) {
				Control ctrl = (Control) e.widget;
				Point globalPos = ctrl.toDisplay(new Point(e.x, e.y));