Bug 159930 [Dialogs] Remove the ControlAnimator from the Preferences and TitleArea dialog
M2 We have decided to remove the control animations. We are also going to remove the background colors from the error message and keep them as the same as the plain message background.
bundles/org.eclipse.jface/src/org/eclipse/jface/preference/PreferenceDialog.java
Assert.isNotNull(currentPage.getControl());
		}
		
		
		final Point[] size = new Point[1];
		final Point failed = new Point(-1, -1);
		SafeRunnable.run(new ISafeRunnable() {
			public void handleException(Throwable e) {
				size[0] = failed;
			}
			public void run() {
				size[0] = currentPage.computeSize();
			}
		});
		if (size[0].equals(failed)) {
			return false;
		}
		Point contentSize = size[0];
		
		
		
		
		Shell shell = getShell();
		Point shellSize = shell.getSize();
		if (oldPage != null) {
			Rectangle rect = pageContainer.getClientArea();
			Point containerSize = new Point(rect.width, rect.height);
			int hdiff = contentSize.x - containerSize.x;
			int vdiff = contentSize.y - containerSize.y;