If you’re looking for a new theme to try out and customize, Aardvark 2.3 “Penguin” by Shaun Daubney might be one for you.
The theme features a custom header and profile bar. Autohide, gradient backgroun and solid customizable footer. Find out more by visiting the official forum entry http://moodle.org/mod/forum/discuss.php?d=207561. Or check it out in the theme database: http://moodle.org/plugins/view.php?plugin=theme_aardvark.
Aardvark 2.3 is released for Moodle 2.1 and up.