This will explain how to find those hidden textures in the .pngs of JKA's mysterious skin files the proper way; not using paint to save them or gimp which never worked for me. I've had a lot of issues when I was learning the in's and out's of creating a functional RGB texture. The biggest problem was finding the hidden textures in png's from the base textures, most of the online help suggests simply re-saving the image in paint, or opening it up in GIMP. Neither of these worked for me, and there