Comment 24 for bug 986704

Also we should allow the skin designer more freedom. Currently the the skin.xml file supports supports the tags for the LibrarySidebar, the SearchBox, the CoverArt, and the Library itself. When doing this change the State / Progress / Controls widget can also be sepparated (in a LibraryControlls tag for example).

To allow the skin designer to play with this we can separate the LibrarySidebar tag in different tags: LibrarySidebarButtons and LibrarySidebarMenu, the first one will contain the main buttons (Library, Notes, AutoDJ) and the second one will contain the sub-menus for every item (Library Tree (legacy), Crates, Playlists for the Library item).