rtl

WordPress has this very easy and straight forward logic when it comes to RTLing themes. It simply checks for the direction of the language you're using in your WP installation, if it happens to be 'rtl'(Arabic for example) it includes the stylesheet rtl.css if it exists. This means that RTLing a WP theme is creating this rtl.css file. A detailed tutorial is coming up soon about RTLing WP themes