mutter

Window and compositing manager based on Clutter

Mutter is a Wayland display server and X11 window manager and compositor library. It implements the compositor side of the Wayland core protocol as well as various protocol extensions. It also has functionality related to running X11 applications using Xwayland. When used on top of Xorg it acts as a X11 window manager and compositing manager. It contains functionality related to, among other things, window management, window compositing, focus tracking, workspace management, keybindings and monitor configuration.