[Dismas]

1. A way to select a different header image from a few various patterns, backgrounds, etc.
   
2. Full width mode - the forums take up almost the entire browser view port space, rather than having like 85% of it.
   
3. Compact mode - Make the header smaller to minimize wasted space.
   
4. Make the sidebar toggleable
   

That's all I can think of right now. Basically, just features for usability and customization.

1. We're doing this already. We'll have different leather or patterns.
   
2. I like the idea, but not sure if it's necessary. The theme will be responsive, as far as I know.
   
3. What sidebar?