Who subs for 9anime/Aniwave

Hi guys i just need some help, where does Aniwave get their colorful subs especially the artsy subs for anime opening lyrics

i can still remember Dame Desuyo subbed their AOT's Final Season pt1, then a season of Demon Slayer subbed with Erai-Raws

eash season will have a different subber but it's always colorful when it comes to subs, and they will update the subs if the anime like AOT releases a DVD version

l just really need the names of the subbers, maybe i can sesrch for them in Nyaa, maybe some of you still have the downloads, the name of the file will indicate the subber usually