start-here	 The icon used by the desktop's main menu for accessing places, applications, and other features.
user-bookmarks	 The icon for the user's special “Bookmarks” place.
user-desktop	 The icon for the special “Desktop” directory of the user.
user-home	 The icon for the special “Home” directory of the user.
user-trash	 The icon for the user's “Trash” place in the desktop's file manager.