SceneSetAmbientLight(Color3) Method

public void SetAmbientLight(
	Color3 ambientLightColor
)

Parameters

ambientLightColor  Color3

Color3

Sets the ambient light for this scene to the specified color.

This method searches for existing AmbientLight in the Lights collection. If found, then its Color is set to the specified color. If no AmbientLight is found, then a new AmbientLight is created and added to the Lights collection. If there are more then one AmbientLight in the Lights collection, then only the first one is preserved, all others are removed.

Reference