clutter-gtk: clutter-gtk (Open GL based interactive canvas library GTK+ widget ) clutter-gtk: clutter-gtk: Clutter is an Open GL based interactive canvas library, designed for clutter-gtk: creating fast, mainly 2D single window applications such as media box clutter-gtk: UIs, presentations, kiosk style applications and so on. clutter-gtk: clutter-gtk: clutter-gtk: clutter-gtk: clutter-gtk: clutter-gtk: