code: private CmsGalleryTreeItem createGalleryFolderItem(CmsGalleryFolderEntry galleryFolder) {
  
          CmsGalleryTreeItem folderItem = new CmsGalleryTreeItem(galleryFolder);
  
          CmsSitemapHoverbar.installOn(
              m_controller,
              folderItem,
              galleryFolder.getStructureId(),
              galleryFolder.getSitePath(),
              true);
          return folderItem;
      }
docs: Create a gallery folder tree item.<p>
  
  @param galleryFolder the gallery folder
  
  @return the tree item