I can't tell if this is just my eyes going bad, or not, but on the avatars only, there appears to be a dark band behind where the title and character name are, then the bottom of the avatar itself is lighter:

http://www.undeadfish.com/UFRoster2/add ... ouncil.png

You have a color frame enabled in the avatar settings
Find it in the backgrounds config

Thanks, zanix. I was hoping it was something in my config, but I couldn't figure out what.