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
* @param rightControl
	 * @return Sash
	 * 
	 * @since 3.1
	 */
	protected Sash createSash(final Composite composite, final Control rightControl) {
		final Sash sash = new Sash(composite, SWT.VERTICAL);
		sash.setLayoutData(new GridData(GridData.FILL_VERTICAL));
		sash.setBackground(composite.getDisplay().getSystemColor(SWT.COLOR_LIST_BACKGROUND));
		
		
		sash.addListener(SWT.Selection, new Listener() {
			/*
			 * (non-Javadoc)
			 * 
			 * @see org.eclipse.swt.widgets.Listener#handleEvent(org.eclipse.swt.widgets.Event)
			 */
			public void handleEvent(Event event) {
				if (event.detail == SWT.DRAG) {
					return;
				}
				int shift = event.x - sash.getBounds().x;
				GridData data = (GridData) rightControl.getLayoutData();
				int newWidthHint = data.widthHint + shift;
				if (newWidthHint < 20) {
					return;
				}
				Point computedSize = getShell().computeSize(SWT.DEFAULT, SWT.DEFAULT);
				Point currentSize = getShell().getSize();