Tricky Colors

We say: Every field should have the same color in the end.
You say: Oh no! Not another simple color puzzle!
We say: It's not that simple. Try to solve it.
You say: No problem.
We say: Are you sure? Every touch effects the touched field and its neighbours.
You say: That's all? Where is the challenge?
We say: Appearances are deceptive, aren't they?

People say: Tricky Colors is a real brainteaser.