Since the Aqua look came out in OS X, there have been a lot of imitations used on webpages, knock-off UIs, etc. which tended to look terrible, in part because i

Since the Aqua look came out in OS X, there have been a lot of imitations used on webpages, knock-off UIs, etc. which tended to look terrible, in part because it's hard to do them tastefully. At least flat UIs are harder to mess up. Personally, I really liked the modified Platinum UI from MacOS X DR2 code named Rhapsody, though it could have used some polish: http://www.guidebookgallery.org/screenshots/rhapsodydr2 http://www.guidebookgallery.org/screenshots/rhapsodydr2