Sawfish (Sawmill) 1.2
Sawfish is an extensible window manager that uses an Emacs Lisp-type scripting language.
All window decorations are configurable, and all user interface policies are controlled through the Lisp language.
Sawfish is an excellent match for the GNOME desktop, and it is part of the Helix-GNOME desktop.
Sawfish includes the functions needed to act as a window manager for GNOME, without things like desktop background settings.
Sawfish will work independently as well.