Также попробуйте с main.css удалить строки с участием класса lastExpandable, например:
.treeview li.lastCollapsable, .treeview li.lastExpandable { background-image: url({ASSETS_IMAGES_PATH}treeview-default.gif); } .treeview li.lastCollapsable { background-position: 0 -111px } .treeview li.lastExpandable { background-position: -32px -67px } .treeview div.lastCollapsable-hitarea, .treeview div.lastExpandable-hitarea { background-position: 0; } .treeview-red li { background-image: url({ASSETS_IMAGES_PATH}treeview-red-line.gif); } .treeview-red .hitarea, .treeview-red li.lastCollapsable, .treeview-red li.lastExpandable { background-image: url({ASSETS_IMAGES_PATH}treeview-red.gif); } .treeview-black li { background-image: url({ASSETS_IMAGES_PATH}treeview-black-line.gif); } .treeview-black .hitarea, .treeview-black li.lastCollapsable, .treeview-black li.lastExpandable { background-image: url({ASSETS_IMAGES_PATH}treeview-black.gif); } .treeview-gray li { background-image: url({ASSETS_IMAGES_PATH}treeview-gray-line.gif); } .treeview-gray .hitarea, .treeview-gray li.lastCollapsable, .treeview-gray li.lastExpandable { background-image: url({ASSETS_IMAGES_PATH}treeview-gray.gif); } .treeview-famfamfam li { background-image: url({ASSETS_IMAGES_PATH}treeview-famfamfam-line.gif); } .treeview-famfamfam .hitarea, .treeview-famfamfam li.lastCollapsable, .treeview-famfamfam li.lastExpandable { background-image: url({ASSETS_IMAGES_PATH}treeview-famfamfam.gif); }меняем на:
.treeview-red li { background-image: url({ASSETS_IMAGES_PATH}treeview-red-line.gif); } .treeview-red .hitarea{ background-image: url({ASSETS_IMAGES_PATH}treeview-red.gif); } .treeview-black li { background-image: url({ASSETS_IMAGES_PATH}treeview-black-line.gif); } .treeview-black .hitarea{ background-image: url({ASSETS_IMAGES_PATH}treeview-black.gif); } .treeview-gray li { background-image: url({ASSETS_IMAGES_PATH}treeview-gray-line.gif); } .treeview-gray .hitarea{ background-image: url({ASSETS_IMAGES_PATH}treeview-gray.gif); } .treeview-famfamfam li { background-image: url({ASSETS_IMAGES_PATH}treeview-famfamfam-line.gif); } .treeview-famfamfam .hitarea { background-image: url({ASSETS_IMAGES_PATH}treeview-famfamfam.gif); }