Love your OS to be transparent? Then you can’t miss this sick little transparent mod just released from XDA member fenando sor. For over a year now he’s been developing theming apps, and his latest will give you transparent themes for Google Voice, the Market, Pandora, Gmail 2.3.5, XDA app, and Facebook as well. In addition to the transparent versions you’ll find colors which include blue, cyan, orange, red, pink, emerald, and black clear.
Check out the application thread for downloads links and instructions.
Another screenshot of transparent Facebook: