No theme for me. It's the default theme.
The text colors are the left Nav with 2 colors being black and red, the top nav tab with black and bold black, the cookie trail being purplish (visited) in bold and non-bold and black, forums being bolded blue for not visited and bolded purple for visited (with a green background) along with the clear/change position being purple if visited, for posts in a forum (all on the fav forum page) you have purple for visited and blue for not visited along with red or yellow envelopes denoting the same thing. Add in the text on each thread line with blue for the poster, black for the post count and black for the last post date.
Looks more like a paint store exploded