I'd like to be able to use regex patterns to filter the file names/extensions. I would imagine you could just have a checkbox to enable regex on the patterns so it's still easy to use, but advanced users get a little more control. This is mainly because I deal with Symfony PHP frameworks, and would like to separate models, from templating, even though they both end in *.php. My template files begin with an underscore _*.php and I wanted a different color, this pattern doesn't seem to work.
Thanks for all your hard work! I love this little addition makes things easier to navigate.