Wonderful. Easy to setup. Works beautifully. Only things I can see is, it would be nice to have a 'progressbar_height' setting, then of course you would need to scale the text to match the bar thickness.
I'm always blown away with some of the great free add-ons. This one is no exception. Easy to install and setup. No problems and it works and looks great. I only wish it allowed you to display more than 20 thumbs. That aside, well done.