End colorblindess ableism now!

EDIT: Looks like someone killed my creative title. I was thinking, the easiest way to fix this (for me) would be to just put a black outline around the arrow. It's subtle, it's visible, it doesn't make your screen look like an LSD trip. The only other one I have a big problem with, the yellow/green colors of NPC's and characters just doesn't seem to be an issue for me. How often do I need to tell apart pets and people?