Risk of Rain 2 suffered from a massive lack of skins for the game's character, so I set out to do two things; Allow players to make skins, and procedurally generate more skins for characters. This led to two distinct mods being created, SkinAPI, which broke ground in understanding and exploiting the incredibly complex code from Hopoo and allowed anyone to make skins for character just by using photoshop and putting some .png files in folders, and ExtendedSkins, which procedurally manipulated the default textures in very specific ways to generate more skins for all the characters in the game.
