Can these be used in a commercial product? I'm making all my own art for my little indie eventually, but I need to know it's safe to use art like this as a placeholder in case I either can't replace them in time or somehow forget that they're placeholder. I'm keeping to assets that are safe in case I make a mistake.
That said, anything I implement as a placeholder will be in my credits even if I do replace the art, just in case the sprites are somehow still in my game files or something.
Thanks!