gnome-themes-extra: gnome-themes-extra (default icons used by GTK+) gnome-themes-extra: gnome-themes-extra: A set of default icons used by many GTK+ applications. gnome-themes-extra: gnome-themes-extra: gnome-themes-extra: gnome-themes-extra: gnome-themes-extra: gnome-themes-extra: gnome-themes-extra: gnome-themes-extra: