What takes gesso out of carpets?

Oh, dude, if you've got gesso on your carpet, you're in for a treat! Just grab some warm water and a mild detergent, like dish soap, and gently blot the area. It might take a few tries, but eventually, that gesso will be like, "I give up, I'm outta here!" Just remember, patience is key... or you could just get a new carpet, your call.