My face is swirled because Jake Henson punched me right between the eyes. I was yelling at him and calling him names. I also threw my orange at him.

Chroma key is a function that renders a specific color in a layer transparent. In television and film, it's the technique of using a monochromatic background for the purpose of replacing it with a different image or scene in post-production. In the film industry it's called blue screen.