A question - in the anime, all the eyes in the Gate are purple, right? I couldn't help but notice that several of the characters who have come from beyond it also have that hue of eyes. I was just wondering if this seems to be true for the most part, that those from beyond the Gate take on a more purple shade to their eyes, or if it's a coincidence. Because I noticed three of the characters that have been there have had their eye colour change, both for a more purple tint than before, and I don't think it's just an error, but I might be reading too much into it all.
And if so, are there characters who haven't been beyond the Gate with purple eyes? (And has this been covered before and I missed it? xD)