Board Thread:Speculation House/@comment-165.138.37.20-20171122222909/@comment-33702335-20180104025845

I think I agree with Grishaboy and ChishioKunrin: they were probably going for a was a completely neutral color, like grey, so she can change eye color without her natural pigment affecting it. We've seen her eyes turn both blue and red, so we know she's capable of that (even if it makes no biological sense, but whatever).

I think that it would make sense for there to be a few other silver-eyed people - there are a lot of people in Remnant, so Ilia, Yuma and the Shady Man having these eyes isn't a stretch - but I doubt that they'd ever learn how to use it. Very, very few people know about the existence of magic, so they probably dismiss the Silver-Eyed Warriors as myth and wouldn't even try to unlock it. So as many supposedly silver-eyed people there are, I doubt we'll be getting a bunch of new Warriors anytime soon.