Bug 63255 [Preferences] some pages cannot be displayed in high contrast
STEPS 1) Switch to High Contrast by selecting Window->Control Panl->Accessibility Resources 2) Start Eclipse 3) Open the preferences page 4) Select Colors and Fonts 5) Select a diffrent page 6) new page not displayed.
bundles/org.eclipse.jface/src/org/eclipse/jface/preference/PreferenceDialog.java
private static String lastPreferenceId = null;
	
	private static int lastTreeWidth = 150;
	/**
	 * Indentifier for the error image
	 */
	public static final String PREF_DLG_IMG_TITLE_ERROR = DLG_IMG_MESSAGE_ERROR; 
	/**
	 * Title area fields
	 */
	public static final String PREF_DLG_TITLE_IMG = "preference_dialog_title_image"; 
	static {
		ImageRegistry reg = JFaceResources.getImageRegistry();
		reg.put(PREF_DLG_TITLE_IMG, ImageDescriptor.createFromFile(
				PreferenceDialog.class, "images/pref_dialog_title.gif")); 
	}
	/**
	 * The current preference page, or <code>null</code> if there is none.
	 */
	private IPreferencePage currentPage;
	private DialogMessageArea messageArea;
	/**
	 * Indicates whether help is available; <code>false</code> by default.'
	 * 
	 * @see #setHelpAvailable
	 */
	private boolean isHelpAvailable = false;
	private Point lastShellSize;
	private IPreferenceNode lastSuccessfulNode;
	/**