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/dialogs/PathVariablesGroup.java
private Set removedVariableNames;
    
    private IPathVariableManager pathVariableManager;
    
    private final Image FILE_IMG = PlatformUI.getWorkbench().getSharedImages()
            .getImage(ISharedImages.IMG_OBJ_FILE);
    
    private final Image FOLDER_IMG = PlatformUI.getWorkbench()
            .getSharedImages().getImage(ISharedImages.IMG_OBJ_FOLDER);
    
    private Image imageUnkown;
    /**
     * Creates a new PathVariablesGroup.
     *
     * @param multiSelect create a multi select tree
     * @param variableType the type of variables that are displayed in 
     * 	the widget group. <code>IResource.FILE</code> and/or <code>IResource.FOLDER</code>
     * 	logically ORed together.
     */
    public PathVariablesGroup(boolean multiSelect, int variableType) {
        this.multiSelect = multiSelect;
        this.variableType = variableType;
        pathVariableManager = ResourcesPlugin.getWorkspace()
                .getPathVariableManager();
        removedVariableNames = new HashSet();
        tempPathVariables = new TreeMap();
        
        initTemporaryState();
    }
    /**