FVWM

FVWM project is an extremely powerful ICCCM-compliant multiple virtual desktop window manager for the X Window system. Development is active, and support is excellent. Check it out!

Features:

• Full Enhanced Window Manager Hints support
• Full internationalization
• Greatly improved font support, including anti-aliasing
• Improved decoration code (no flickering anymore)
• Featuring side titles, including vertical text
• Powerful WindowShade in all directions, including diagonal
• Supporting PNG including alpha blending
• Image rendering in colorsets
• Perl library for creating modules in Perl
• New module FvwmPerl to enable scripting in rc files
• Optional text shadows (looks nice with light text)