I was looking at a MacBook Air at a Fry's electronics, which had the inverted look, and I couldn't figure out what the hell was going on with the screen. I mad

I was looking at a MacBook Air at a Fry's electronics, which had the inverted look, and I couldn't figure out what the hell was going on with the screen. I made sure to google control+option+command+8 before hitting it though...