Accordion Menu - Where is the original CSS file of the module? I tried for two hours to RTLize\Flip the module via Firebug &amp; Style.css but without major success. So I figured this is one of case when the flipping should be done at the module's CSS files themselves. So I went to sites/all/modules/accordion_menu but I couldn't find anything that has all the CSS. I found only accordion_menu.css that doesn't have more than 4-5 rows of CSS code. So it's not something I could RTLize\flip. 

Therefore I ask, where is the genuine Accordion Menu CSS file (that appear in DOM but not in the style window)? How could I track it down and flip it's CSS? 

Thanks,
The Accordion Menu module uses jQuery UI, which is included with core. If the styles you're looking for are in a CSS file, they'll be in /misc/ui/jquery.ui.accordion.css (or possibly one of the more general jQuery UI CSS files).

Bear in mind that jQuery UI is a javascript library, so the styles might be applied directly to the elements at runtime, and may never exist in a CSS file as such.