I'm planning on painting leopard print onto fondant but i would like to do it the night before. If i do so and leave it out over night will the fondant still be pliable the next day without having to re-roll it or mess with it at all? Any insight or tips are appreciated!

You want to paint it before you put it on a cake? Fondant will dry out until wrapped tightly and placed in an airtight container or ziplock bag. I'm not sure you'' be able to do what you want without it being dry.

If you are saying you want to roll out fondant, cover your cake, and then paint a leopard print onto the fondant ON the cake, all on the night before, then yes, that is fine. Please don't try rolling, then painting, then leaving out over night before applying to a cake. It doesn't work that way.