I've been considering trying to make an armor mod, so for practice I'm starting by trying my hand at tweaking existing items in the game. I've been following along with a decent tutorial so I understand how the coding side of things work, but actually designing the armor is a bit of an issue. All the animation and images are in .frame files. I've tried using both GIMP and Paint.NET but neither one recognizes this file type. Am I supposed to convert them to .png files, or did I miss a step when installing these?