I feel I am restating the obvious: You should still speak to a lawyer.
You are, I was just saying that you're probably right in the next sentence.
Anyway, that subject can be dropped. I probably won't speak to a lawyer, but I'll be more careful in the future.
I'm more interested in the licensing if anyone has any more input on that. I'm considering the zLib license for the stuff that's not graphics. I like its simplicity and the general message it sends. I'm asking my artist how he wants his content protected.
If he wants a strict copyright, will that mean that anyone who wants to change the lua files has to use their own graphics, or simply that they can't alter the graphics he's done?