"The Boy with the Colored Crayons" is an episode of Special Agent Oso.
While Dotty trains Oso to rescue Wolfie from a tank of water on the red tower, and as Oso tries figuring out the fastest way to get there, a special alert is called. Ursula has brought home a picture she colored in school to show her mom, and her brother Ian wants to make a picture too. Ursula lets Ian color a picture in her coloring book, but he has trouble doing so. So Oso decides to help Ian color a picture to show his dad when he comes home.