Bug 29914 Icons for "Sync with Editor", "Collapse All"
We currently have no colored (hover) icon for the "Sync with Editor" and "Collapse All" actions. Also there is not disabled icon for the "Sync with Editor" action.
bundles/org.eclipse.ui.views/src/org/eclipse/ui/views/navigator/MainActionGroup.java
protected GotoActionGroup gotoGroup;
	protected OpenActionGroup openGroup;
	protected RefactorActionGroup refactorGroup;
	protected WorkingSetFilterActionGroup workingSetGroup;
	protected SortAndFilterActionGroup sortAndFilterGroup;
	protected WorkspaceActionGroup workspaceGroup;
	/**
	 * Constructs the main action group.
	 */
	public MainActionGroup(IResourceNavigator navigator) {
		super(navigator);
		makeSubGroups();
	}
	/**
	 * Makes the actions contained directly in this action group.
	 */
	protected void makeActions() {
		Shell shell = navigator.getSite().getShell();
		IWorkbench workbench = navigator.getSite().getWorkbenchWindow().getWorkbench();
		addBookmarkAction = new AddBookmarkAction(shell);
		addTaskAction = new AddTaskAction(shell);		
		propertyDialogAction =
			new PropertyDialogAction(shell, navigator.getViewer());
		
		importAction = new ImportResourcesAction(workbench);
		importAction.setDisabledImageDescriptor(getImageDescriptor("dtool16/import_wiz.gif")); 
		importAction.setImageDescriptor(getImageDescriptor("etool16/import_wiz.gif")); 		
		importAction.setHoverImageDescriptor(getImageDescriptor("ctool16/import_wiz.gif")); 
		exportAction = new ExportResourcesAction(workbench);