Vinifera adds support for cell light emission from terrain type objects. As WAE already simulates the light emitted by building types, it would be good to extend this logic to support terrain types as potential light sources.
In Vinifera, terrain types use the same INI keys to control light emission as building types, with an added toggle: IsLightEnabled. In addition, light from terrain objects naturally cannot be powered down, which is worth to consider during implementation.