Yellow Eyes, definitely yellow eyes

[yourmapper]

If you take a negative color filter and put it on Samantha zombie yellow, it becomes purple. The purple eyed zombies could be teasing towards the map existing in an alternate universe. Whether or not it exists on the main timeline has been debated an I am of the opinion that It is, but I thought is toss that out there.

I remember making a similar idea about MotD because red is the opposite of richtofen's cyan / blue. Of course that ended up being true about alternate universes, but the eyes were red for a different reason.

If you say yellow is the complimentary color to purple, then you are using the traditional color wheel for opposites. That means the complimentary color to red is green. And orange and blue are opposite.

http://en.wikipedia.org/wiki/File:Color_star-en.svg