Bug 153933 [Dialogs] [RCP] Dialog.DLG_IMG_HELP not available in RCP apps
bundles/org.eclipse.jface/src/org/eclipse/jface/resource/JFaceResources.java
*/
	public static FontDescriptor getFontDescriptor(String symbolicName) {
		return getFontRegistry().getDescriptor(symbolicName);
	}
	/**
	 * Returns the font registry for JFace itself. If the value has not been
	 * established by an earlier call to <code>setFontRegistry</code>, is it
	 * initialized to
	 * <code>new FontRegistry("org.eclipse.jface.resource.jfacefonts")</code>.
	 * <p>
	 * Note that several static convenience methods are also provided on this
	 * class for directly accessing JFace's standard fonts.
	 * </p>
	 * 
	 * @return the JFace font registry
	 */
	public static FontRegistry getFontRegistry() {
		if (fontRegistry == null) {
			fontRegistry = new FontRegistry(
					"org.eclipse.jface.resource.jfacefonts"); 
		}
		return fontRegistry;
	}
	/**
	 * Returns the JFace's header font. Convenience method equivalent to
	 * 
	 * <pre>
	 * JFaceResources.getFontRegistry().get(JFaceResources.HEADER_FONT)
	 * </pre>
	 *