It's all Greek to me.
Apologies, but animated GIF avatars won't be possible. I found a solution that was supposed to make them possible (using ImageMagick library), but all it accomplished in testing was to eat up server resources and then didn't actually work. So, they won't be coming back.
Interesting. On that note:... In medicine, orally administered Prussian blue is used as an antidote for certain kinds of heavy metal, the ones with pointless growling.