Mixin’ Styles is a free premium level theme. This theme makes use of advanced CSS 3 features such as rounded corners, text shadow and font embedding, but renders just fine in browsers that do not support CSS 3. You can change several color schemes and backgrounds from the Styling theme options page. In addition, you can upload a custom logo.
More details, screenshots and a download link can be found at:
To preview Mixin' Styles, go to the following link:
Mixin' Styles is released under the GNU General Public License v2.