Fvwm 

One of the most customizable Virtual Window Managers. Originally called Feeble Virtual Window Manager. Now just the F? Virtual Window Manager.

Man 1: Do you agree that Fvwm is truly the most customizable Window Manager?

Man 2: Yes, I agree. Fvwm is truly the most customizable Window Manager.

Fvwm by KFM March 23, 2005

Fvwm 

One of the most cusomizable Virtual Window Managers. Originally called Feeble Virtual Window Manager. Now just the F? Virtual Window Manager.

Fvwm is truly the most customizable Window Manager.

Fvwm by KFM June 12, 2004