OpenGroupware.org just got contributed additional UI themes! Besides providing looks with more eye-candy than the flat OGo default layout, the new themes are excellent examples on customization of the OGo interface.
The new themes are the SKYRiX orange and blue themes contributed by the SKYRIX Software AG as well as the new KDE theme based on the excellent Nuvola icons by Icon-King.
[Blue Theme], [KDE Theme], [Icon-King], [SKYRIX]