Yep, those are colors I've assigned, just like my LJ style had. (The big bar is the "background" color and the border of the userpic the "foreground" color in this particular setup, so if you see your post on my reading page, I've picked a light blue-green background for you.) I'm not sure if you can get rid of the right-side stuff -- I don't mind it myself, so I haven't tried.

If you pick a layout and theme I can try to tweak it for the effect you want -- it's adding extra stuff on top of a copy of the theme.

I hacked it together based on this post: http://afuna.dreamwidth.org/60126.html and a bunch of trial-and-error -- the hard part was finding the names for the elements I wanted to color.