Run it
Copy the script and paste it into your executor.
local sky = Instance.new("Sky")
sky.Name = "CustomSky"
sky.SkyboxBk = "rbxassetid://<16280166028>"
sky.SkyboxDn = "rbxassetid://<16280166028>"
sky.SkyboxFt = "rbxassetid://<16280166028>"
sky.SkyboxLf = "rbxassetid://<16280166028>"
sky.SkyboxRt = "rbxassetid://<16280166028>"
sky.SkyboxUp = "rbxassetid://<16280166028>"
Lol

Universal