It's finally here!
Dark theme has been rolling out and is now available to all on Android. Toggle it on/off in Settings → https://goo.gl/YNrzyT
Note: you'll need app version 13.37 to see the feature.pic.twitter.com/kmX1dwZCjp
If you were eligible and applied before June 1st, then you should have received an email and update in Creator Studio with more information. If your application is being held for an additional review, then you'll get a second update in the near future: https://goo.gl/2icqfh