Bug 87826 Need to improve image loading in Workbench
The Workbench image loading has several issues 1) The string "icons/full" is all over the place in the UI and should be made a constant 2) This needs to be prepended by /nl 3) The plugin descriptor is still in use to load images. This does not support nl which is required for BIDI support
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/ide/ProblemImageProvider.java
/**
     * TaskImageProvider constructor comment.
     */
    public ProblemImageProvider() {
        super();
    }
    /**
     * Returns the relative path for the image
     * to be used for displaying an marker in the workbench.
     * This path is relative to the plugin location
     *
     * Returns <code>null</code> if there is no appropriate image.
     *
     * @param marker The marker to get an image path for.