First time participating in a Jam so this is might be a silly question. I'm doing a solo project but I'm not much of an artist/musician so I was wondering if I am doomed to suffer with programmer art or is it OK to use royalty free/open license stuff?

Still looking for clarity.

Rule 5 states that "Art, shaders, music, and sound assets made before the jam can be used as long as you have the rights." If its open license then the only requirement might be crediting.