Editing players eye color (with hex not reditor)

I already know how to locate a player by cyber face in the hex... but... where in the code can you find eye color? Also, how do you change an eye color from brown to blue?

Thanks for any help hex editing gurus

create a player, give him brown eyes, save the roster
load the roster, edit the player to have blue eyes, save the roster as a different filename

do a file compare with your hex program, find what changed, then share it in the tutorial thread please