+ <attr name="deleteIcon" format="reference" />
+ <attr name="addIcon" format="reference" />
+ <attr name="addBookmarkIcon" format="reference" />
+ <attr name="addFolderIcon" format="reference" />
+ <attr name="selectAllIcon" format="reference" />
+ <attr name="editIcon" format="reference" />
+ <attr name="moveToFolderIcon" format="reference" />
+ <attr name="aboutIcon" format="reference" />