[wmii] Composite support

Hi,

now that there is so much hype about beryl/compiz/xgl and hardware
accelerated desktops.

What do you think about the addition of _simple_ and _usable_ desktop
effects to wmii? I don't think so much about animation, but rather on
transparency effects for floating windows, or to make inactive frame a
little bit darker to make spotting the current column/window easiser?

Do you think:
a) supporting the XComposite extension is bad in general
b) it's good but don't want to spend time on it but would accept patches
c) have fear about the 10.000 LOCs?
d) thinks it's a great idea?

--
Martin