No reason

the colors remind me of Novideo and AyyMD

So he doesn't like his shell and eyebrows?

Christmas lights?

It took me way too long to realize he hates them because of Mario and Luigi, and isn't just a self own because he has a green shell and red hair.

This is used in optometry offices to help refine your prescription

the like/dislike bar

Colors outside physical color space?

Aren't these the exact colors they flashed during the pokemon movie to give kids epileptic seizures?

Why does that post have 1.6 million views?

Status lights?

Raphael the ninja turtle

Portugal

One evokes a sensation that recalls to mind the thoughts of green. The other of red.

Yup, that's pretty much it.

Duochrome test