If you would like to add nightlight into the scene, click on GameObject → Light → Directional Light where a new light source will appear. If you would like to add shadows, choose a Shadow type in Inspector. Thereafter, click on Plane and change the Emission to 20 in Inspector and then uncheck the Continuous baking box. Mark the Fog box in Lightning and choose the Fog Color and Density value as you please. In our example we have changed to a darker grey-black color and the Density value to 0.125.