Below is the darker theme similar to Ambiance. It is a combination of the Equinox Radiance Theme and Ambiance Metacity window treatment. You can find the Equinox Radiance Theme here at gnome-look.org http://gnome-look.org/content/show.php/Equinox+Radiance?content=121883




Below is a theme similar to the Radiance theme in 10.04. The Lucid Light Glossy theme along with the Radiance metacity window treatments is shown. It is very mac-like but with a touch of gold/tan in line with Ubuntu's color schemes.Available here from Gnome-look.org at: http://gnome-look.org/content/show.php/Lucid+Light+Glossy?content=121397




Below is the Karmic Theme. You can find it here to download: http://www.ubuntuthemes.org/karmic.html . It is a little lighter than the Shiki Dust Theme seen earlier. I've also included some wallpaper showing the new Ubuntu logo.



