The package name is just a folder name, You can go to 'CharacterCreator2D/Parts' then you can rename the folder as you wish. For ease of use and simplicity reason, any new parts will be added under the 'Custom' folder, but you should be able to reorganize it as you see fit. Yes, you got that right! As long as it matches the guide resolution, you should be fine. By custom character did you mean Body Skin? If yes, then the step is exactly the same as creating any other parts, but just use the Body Skin guide.