If you get stuck while painting and you don't know where to color next, hints can help you out!
When you're coloring an image you'll notice a light bulb icon on the top of the screen. Clicking on the light bulb will show you the remaining blank areas in the picture!

If you want to know where to use a specific color, just select the color first then tap on the light bulb, and it will show you the blank spaces that must be painted with that specific color!

Keep in mind that the hints are limited! Non-subscribers get 3 free hints to use, and they can watch ads to get more hints! Subscribers get 10 hints per image!