Some map making advice needed

[FablesAndMyths]

Hello there! I'm currently working on a new map, and I've managed to stump myself. Is there a way to edit/alter the lighting when you choose the ceiling rather than the sky option? I would like this map to be underground/underwater/secluded, but it's very dark as is. Any advice is greatly appreciated!

[VortexAlive]

Not that I know of, but you can keep it on sky, and make a cave-like sky (Pitch black and all) and then use an object as your ceiling.

Edit: You'll see stars at night but can make it so the sun and moon don't show and will be able to change your lighting this way.

[FablesAndMyths]

That's a nifty idea, I'll give that a try :3 Thank you