I know this may be late.. but..Where the **** did the name "Herobrine" come from? Why not something that's at least recognizable as a real name? D=
Herobrine came from a fictional rumor story, at the end, he indicates he has no eyes, so that's why his eyes are yellow.
I think the owner did edit all the files to make it possible to have HeroBrine, or he used a Mob texture.
I know his origins, silly. I'm talking about his name. HeroBrine. Seriously, what the ****? I can't see it as being a real name, and the only reason it's recognizable is because of this fool-hardy tale. I don't get it.