I'm curious if they controlled for sunlight then. I'm in a mountainous area and many areas (like where my house is) have mountains blocking sunlight for multipl

I'm curious if they controlled for sunlight then. I'm in a mountainous area and many areas (like where my house is) have mountains blocking sunlight for multiple hours in a day. Couple that with being in a wooded area and even some summer days can feel dark and gloomy. But in my case, being surrounded by nature far outweighs the lack of light in terms of depression.