You better read better the agreement for getting access to my private sources.
Also a few quotes from GPL mentioning about copyright on private projects.
Costumes system - it’s an additional feature, that will allows you to visually dress your character in different costumes (you can use as a special costumes, same as any visual part on any equipment, for example Ninja or Pirate Set, which can be put over the equipment\armor without replacing it and will not remove the parameters/bonuses of your items. Forget about regular DC\Drac sets, now you will look different!
Players can turn off the visual system, to see the correct items - .visualequip on/off