Adriano Faria

Or if you don't want to wait...
 

Probably this:
from Joel.

Makes the color option as a theme setitng isn't a good idea, which makes all groups enabled to use same colors, not differenting them. I also understand that each skin will have a different background, etc. So, useless, for me. But nice addition for those who will use it.

Clever, but in all honesty I can't see the actual point of this, sorry! You normally only include features based on high enough demand and this seems more like a mod in the MarketPlace as opposed to a being stock feature. 
Sorry to sound ungrateful. Would much rather see improvements like being able to toggle open/close categories of smilies, to make reordering via drag and drop in the AdminCP less painful due to excess scrolling, for example.
 

Thanks for clarifying that.
In that case I think it is something that will have limited use overall. At the very least per forum setting is needed, imho.