The brightness of the moonlight can be tweaked via the Moon Bouquet Offerings, which can no longer be obtained from the Bloodweb. New Moon Bouquet and Full Moon Bouquet mark the minimum and maximum achievable values for Moonlight brightness:
Removed the possibility for all Moonlight Offerings to spawn in the Bloodweb. The usage of these Offerings could have a lot of impact on the lighting of each map and the developers needed more control over the exact lighting they decide to set in each map in order to ensure a good experience for everyone. The Moonlight Offerings were making this harder to accomplish.