This is brilliant. The theme has maybe the best use of transparency I've seen; it's subtle, and used for highlighting edges rather then engulfing the entire title of a window. The corners even look a little art-deco... I love it.
really nice skin~! Just one request, could you please include a substyle with shadows? Preferably large shadows that give your windows depth. Including extending the shadow to the top border as well (a 'lighter' shadow on the top compared to the other three borders.) I think this would compliment your style very appropriately. Thanks again.