Okay, so it's not a particularly impressive breakthrough — in fact, it's probably most similar to the sorts of idiots who unicycle down mountains, in that the activity is inefficient, slow and likely to result in broken things. But I may be the first person to dynamically generate graphics with Javascript in Greasemonkey! Woo!

Okay, so actually I'm just flipping the pallette information. Still, it's kind of cool. And, to put it in your primitive human language: the Gmail Colorizer script now properly handles messages with up to three labels applied. I've got more work to do before an official release (I plan to add a GUI to help users set colors and assign them to their labels). But if you'd like to check it out, you can find the gif-manipulating goodness here.