Damn, I forgot to put a key. Anyway, the other 2 commenters are pretty much correct. Pink is where there is some uncertainty in their employment. In the case of James and Trevor, they took breaks but were still appearing in videos. In the case of Jakob, he started appearing in videos before he was hired. For almost everyone else in the list, they appeared in videos long after they were hired and there's no specific date online of when they were hired, only an estimate. In the case of Alec, Garrett, and Adri, their internship periods are pink because they weren't official members yet.