[Metisse] Some remarks / suggestions from our graphist

[Nicolas Roussel]

> She was wondering if it would be possible to apply a black cover on  
> top of the entire screen, except for current window (and probably  
> child / parent of the current window). I wouldn't be so extreme as  
> her, so I might suggest a slightly different approach : instead of  
> using black to hide possible disturbing windows, I would only apply  
> a gray filter (to remove colours from not active windows /  
> background).

I know how to do it in Metisse using shaders. In fact, I was planning  
to do just that. I haven't had time for that  however...

Nicolas