I think (not sure) that they include a plain black truss rod cover.
As an aside, am I the only one who seems to like Epiphone's headstock better than Gibson's? It seems to have slightly straighter string pull too. And yes, I know that Jacksons don't have anything resembling a straight string pull on their headstocks, but most have a locking nut so it really doesn't matter. Getting the high E in tune before clamping it is a bit tricky.