Green Screen - Green Concrete
Void world with resource pack and /time set to 3840.
White Screen - White Concrete
Void world with resource pack and time set to /5830
Black Screen - Black Concrete
Void world with resource pack and /time set to 13000 or "night"
Green Screen - Glowstone
Void world with resource pack and /time set to 3840
Blue Screen - Shroomlights
Void world with resource pack and /time set to 4830
Without Resource Pack
