This is a tool to put cosmetics on sprites. The cosmetics are have optional customizability to change the color, saturation, and brightness of the costumes. It also has options to use either pen stamping or Clones. It is meant to be very easy to implement. It is fully backpackable, it uses lists, and it does a lot of things automatically. The developer only has to make 1-2 costumes (for each costume of the sprite's non-cosmetic ones) per cosmetic and everything already works. They just have to use the lists to change which cosmetics are active and the colors of each.
This is the most clickbaity thumbnail I've ever made XD The lists determine the order of the Cosmetic layers from back to front. Just make a costume with a name like "Walk1Suit1Color" ({animation}{cosmetic}{type}, animation is the player's animation frame name, cosmetic is the name of the cosmetic, type if either Color, Outline, or blank) Now just add the cosmetic's name to the Cosmetics list and add its values in the Color, Brightness, and Saturation lists. And you're done. Triple Affirmative (real) (Rain World Reference)