Bug 30402 [Preferences] Banner should have 1-pixel border
build I20030115 In the Preferences and Properties dialogs, the banner currently has a black and white border on the bottom. It should have a black border all the way around it, plus the white line at the bottom. See the attached image from graphic design.
bundles/org.eclipse.jface/src/org/eclipse/jface/preference/PreferenceDialog.java
extends Dialog
	implements IPreferencePageContainer {
	/**
	 * Title area fields
	 */
	public static final String PREF_DLG_TITLE_IMG = "preference_dialog_title_image"; 
	public static final String PREF_DLG_IMG_TITLE_ERROR = DLG_IMG_MESSAGE_ERROR; 
	
	private static String lastPreferenceId = null;
	static {
		ImageRegistry reg = JFaceResources.getImageRegistry();
		reg.put(PREF_DLG_TITLE_IMG, ImageDescriptor.createFromFile(PreferenceDialog.class, "images/pref_dialog_title.gif")); 
	}
	private Composite titleArea;
	private CLabel messageLabel;
	private Label titleImage;
	private Color titleAreaColor;
	private String message = ""; 
	private String errorMessage;
	private Color normalMsgAreaBackground;
	private Color errorMsgAreaBackground;
	private Image messageImage;
	private Image errorMsgImage;
	private boolean showingError = false;
	private Point lastShellSize;
	/**
	 * Preference store, initially <code>null</code> meaning none.
	 *
	 * @see #setPreferenceStore
	 */