RBX.lua.Sky (Object)
From Legacy Roblox Wiki
Sky is an object that makes the sky section of your choice the picture of your choice. Just like a simple cube, the sky object has 6 sides. Make each side the same picture... or make it look like a room.
Functions
The Sky object only incorporates the global functions.
Properties
In addition to the Global properties, the Sky also uses these.
Events
The Sky object only incorporates the global events.