Warrior General Games

Why are some green and some are red

Green = Favored abilities (based on archetype)
Red = Penalized abilities (based on archetype)

They have bonuses/penalties applied to them, respectively based on the archetype.

So just as an example (this is in no way how it works, but just to illustrate what I mean):
A favored ability with say 5 in it may in fact fire as if it had 7
whereas a penalized ability with 5 in it may only fire as if it had 3 in it.

I think the prevailing opinion is that it's +/- 20% but that's unconfirmed. I think they might have just used it as an example; they do that sometimes. Things like that are generally kept close to the chest.