The idea of the game is to paint the hand drawn tractor. This game is suitable for children who are in the pre-elementary department, but that doesn’t mean that it can’t be enjoyed by people of any age and sizes. No one can tell you what to do or what to play.
In this game, you need to paint the tractor as you like it. That means no one can dictate how you should color the tractor since you are in control of the game. For that, you can do whatever you think is pleasurable for you. If you choose to color your tractor the way no else does, it doesn’t mean that you have a bad color sense as it only means that you want to explore things.