By turning up your gamma and brightness to max along with cloud detail to high you have extreme full visibility at night. Right now in the Alpha it seems more acceptable but gives players a huge advantage in the night and makes the flashlight/gaslamp/headlamp/etc all obsolete.
This may not be an issue or is currently. Just something I feel the devs should look at balancing out. Depending on the majority opinion (There's almost no point of night with these settings on. It's basically black and white mode)