And that right there is the reason why I'm never having kids
I think that's white paint, but it reminds me of the time my daughter smeared my parents' kitchen floor and cabinets with a mixture of flour, water, broken bits of dry spaghetti and dry beans in the middle of the night while we were there helping my mother after she broke her shoulder at our house.
I made the little stinker help me while I cleaned it up. It had begun to dry so it took us hours to clean it.