(maybe in the actual comments of the file details? - and I realize that you can't keep track once it is rendered to pixels, but maybe whenever text is commited, add the new font to the file comments?)
Forgive me if this has been asked before, but recently used fonts would be SUPER helpful! :D (storing the fonts used in the drawing would be even more helpful) :D
If there is a plugin that does this, I am all ears!
Thanks! (And LOVE paint.net)