Bug 153933 [Dialogs] [RCP] Dialog.DLG_IMG_HELP not available in RCP apps
bundles/org.eclipse.jface/src/org/eclipse/jface/resource/JFaceResources.java
* Returns the font in JFace's font registry with the given symbolic font
	 * name. Convenience method equivalent to
	 * 
	 * <pre>
	 * JFaceResources.getFontRegistry().get(symbolicName)
	 * </pre>
	 * 
	 * If an error occurs, return the default font.
	 * 
	 * @param symbolicName
	 *            the symbolic font name
	 * @return the font
	 */
	public static Font getFont(String symbolicName) {
		return getFontRegistry().get(symbolicName);
	}
	/**
	 * Returns the font descriptor for in JFace's font registry with the given
	 * symbolic name. Convenience method equivalent to
	 * 
	 * <pre>
	 * JFaceResources.getFontRegistry().getDescriptor(symbolicName)
	 * </pre>
	 * 
	 * If an error occurs, return the default font.
	 * 
	 * @param symbolicName
	 *            the symbolic font name
	 * @return the font descriptor (never null)
	 * @since 3.3