Microthemer is a visual design plugin that gives non-technical WordPress users a way to customize the appearance of their WordPress theme. Microthemer is intended for WordPress users who demand near full design control but don’t have any knowledge of CSS .
Microthemer has been described as “WordPress theme options on steroids”. This is because the level of artistic control that one can achieve with Microthemer is very high indeed.
Currently, Microthemer can be used to customize the following WordPress Themes: Twenty Eleven, Twenty Ten, Thematic, and Toolbox. Many many more Themes will be supported as time goes on.