Similar issue here. I have a dark background in my forum, Shaolin Temple Perspective - russbo Forum / Library
, and the background of the photos is white, instead of, well, I think transparent. where would I alter that?? I can't find a panel surround css in any of styles.
And if you follow that into the Photopost section, that same background appears (it won't match the dark styles). Must be some background setting in some css somewhere, but I can't find it.