Bug 81292 [Preferences] Message area should be disabled when empty
200412152000 My GTK theme has a textured background by default. There is a section of the preference dialog next to the Default/Apply buttons that does not respect this. I suspect there is an empty label/text widget that has had its background colour set manually. Screencap forthcoming
bundles/org.eclipse.jface/src/org/eclipse/jface/preference/PreferencePage.java
/**
     * Standard Apply button, or <code>null</code> if none.
     * This button has id <code>APPLY_ID</code>.
     */
    private Button applyButton = null;
    /**
     * Description label.
     * 
     * @see #createDescriptionLabel.
     */
    private Label descriptionLabel;
    /**
     * Caches size of page.
     */
    private Point size = null;
    /**
     * The message area for displaying the messages.
     * If this is <code>null</code> messages are forwarded
     * to the parent.
     */
	private MessageRegion messageArea;
    /**
     * Creates a new preference page with an empty title and no image.
     */
    protected PreferencePage() {
        this(""); 
    }
    /**
     * Creates a new preference page with the given title and no image.
     *