As you can see from our sites our visual likes are not following the norm/herd and some would say they suck visually. At some point we will conform some more with a more traditional herd-like look, but we will never go "flat". ;)
BPS .50.2 has a UI Theme Chooser with 3 UI Themes.
The funky blue gel theme UI currently in BPS plugin versions.
A light grey jQuery default looking theme UI
A Black and Dark theme UI modeled after WP 3.8+