Hello everyone, this is my first post on this forum. Happy to be here, though I'm miffed at myself that I missed the recent Q&A - I have a few questions that I would have loved to get answers to. Ah well, I'll try to get them in at the next Q&A.
Odium's Shard:
I'm confused here. Do you mean that when a darkeyes bonds with a Shardblade, his/her eyes are always genetically modified to become blue? Why not other light colors, like green? Not all Shardblade wielders have blue eyes – Gavilar, for instance, had green eyes:
Also, does you theory account for the Knights Radiant having very pale eyes, a detail that specifically attracted Dalinar's attention in his visions? (Maybe Knights Radiant, because of their magically-empowering and -binding Ideals, forge a "deeper" connection to their Shardblade and thus have paler eyes compared to current-day wielders who want only to selfishly gain a nigh-unstoppable weapon.)
Finally, and speaking from a purely personal viewpoint, it doesn't seem fair that a darkeyes would be affected by some problem due to bonding with a Shardblade, purely because his/her eye color isn't right, while lighteyes get a free pass. It feels like, well, magical racism.