Yeah I have done, and do something like this. I have an icon library created using axialis icons for perl. I stole the activestate perl icons and changed their color (and other tings actually :-). Dark blue is perl modules. Yellow is scripts (the default), and I have couple of others for extensions that probably wouldn't make sense outside of my context. Ive been meaning to post a script to install them, and now that I see matt kruses work I may use them and do so. :-)