Bug 177438 Accessibility : Preferences Dialog UI has problems in High Contrast Mode on SLED 10
Build ID: 3.2.2 Steps To Reproduce: 1.Set the OS in high contrast Mode 2.Set Font size of Application font to Sans 28 3.Restart platform 4. Bring up Preferences in Eclipse and notice that UI is not displayed completely. More information:
bundles/org.eclipse.jface/src/org/eclipse/jface/preference/PreferenceDialog.java
protected TreeViewer createTreeViewer(Composite parent) {
		final TreeViewer viewer = new TreeViewer(parent, SWT.NONE);
		addListeners(viewer);
		viewer.setLabelProvider(new PreferenceLabelProvider());
		viewer.setContentProvider(new PreferenceContentProvider());
		return viewer;
	}
	/**
	 * Add the listeners to the tree viewer.
	 * @param viewer
	 * 
	 * @since 3.1
	 */
	protected void addListeners(final TreeViewer viewer) {
		viewer.addPostSelectionChangedListener(new ISelectionChangedListener() {
			private void handleError() {
				try {
					
					
					
					viewer.removePostSelectionChangedListener(this);
					showPageFlippingAbortDialog();
					selectCurrentPageAgain();
					clearSelectedNode();
				} finally {
					viewer.addPostSelectionChangedListener(this);
				}
			}
			public void selectionChanged(SelectionChangedEvent event) {
				Object selection = getSingleSelection(event.getSelection());