When cinematographers pick a color palette for their movie or animation, it's about more than aesthetics. In fact, they're probably using color theory to stir up your emotions as you watch the images onscreen.
Lots of people know what irony is but find it hard to explain. So here's an irony definition. It's a literary device that highlights the incongruity (a fancy word for 'difference') between one's expectation for a situation, and the reality.