This is the current template of this site. It's simple, lightweight and clear. It's based on Keep It Simple theme with some modifications such as the use of Iconize.
Since version 1.1, this theme is fully compatible with Concrete 5.3. It allows user customizations and in-editor styling preview.
Last revision : 1.1
Date : 22 May 2009
Licence : Creative Commons Attribution 3.0 Unported
Download : http://sourceforge.net/projects/kissisback/
Original Concrete5 Forum post : http://www.concrete5.org/community/forums/themes/a_simple_theme_to_work_with/