How do I handle copyright for the sprites?

Hello again!
I built a simple Minesweeper-type game with a little twist.
It uses sprites from the Codea package for most of the images.
I don’t expect much from it, but I would like to submit it to the App store.

I was assuming that those images were free to use with some acknowledgement, but if not, what should I do?

Thanks!

They are free to use with acknowledgement, so just acknowledge them and you’re fine!

Thanks again, Simeon!