Ok, I've been poring through the stylesheet board, and I've sifted through the modification index, but I'm just not seeing what I'm looking for. I've probably looked right at it and missed it, because it's almost 4 a.m. and I'm bleary-eyed.
I'm looking for the mod, or instructions on how to do this, to set up stylesheet-dependant images - header/banner images, post icons, even graphics for the "new post" "reply" and so forth buttons. I suspect this is both a stylesheet and a template hack thing.
Can someone point me the right way?