Some quick notes on area lighting, fog and weather. This is going to be made into a better page later.
Lighting in NWN has become a bit more nuanced in NWN:EE. There is a better lighting engine as of 2020 and this improves the tile and dynamic lighting and how it interacts with things.
Concepts:
Topics:
Choosing an initial "Preset" in area properties
Day and Night Cycle Lighting
Sun and Moon
Skybox
Fog (Clip distance)
Dynamic Lights
Shadows (Opacity)
User Lighting Settings
Subtopic on weather:
Currently you cannot control the Sun/Moon Ambient/Diffuse options.