Bug 180701 [JFace] API - Popup dialog is creating image descriptors every time it is opened
We are not caching the imageDescriptors from PopupDialog but are recreating them all of the time. This is likely not a serious issue but it will generate garbage. Also the images are not looked up using bundles so they cannot be overridden in other Locales. As they are currently symmetric this is not an issue but they should be looked up in the same way we do it in JFaceResources when this fixed.
bundles/org.eclipse.jface/src/org/eclipse/jface/resource/JFaceResources.java
* 
	 * <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
	 */
	public static FontDescriptor getFontDescriptor(String symbolicName) {