Tilt your head to the left to apply them the default Scratch color. Tilt your head to the right to turn them back into normal.
Just tinkering with the new face sensing feature :P P.S: The costume editor crashed when i uploaded Izumi because i made her on Inkscape so i had to upload her on bitmap :'v P.S 2: Librewolf was preventing me to publish this project, so i had to use Cromite to do so. That might be the problem why i can't comment on Scratch...