Waimea is a highly customizable window manager for the X Window system
conforming to the latest EWMH specification.  Waimea supports multiple
virtual desktops and by using the Cairo graphics library for all rendering,
Waimea provides a modern vector-based style engine that takes advantage of
display hardware acceleration when available (through the X Render
Extension).

WWW: http://www.freedesktop.org/wiki/Software_2fwaimea