night only lasts a few minutes quit whining 
The moment when the lack of light becomes a problem is subjective, but from the time it starts to get dark enough to be a problem until it becomes light enough to see clearly is more than "a few minutes". 
I want to fight at high noon in glorious Technicolor.   

Turning up gamma makes everything look like poo.  Most of the time, I will log out and come back in an hour.  Does anyone log out because the sun is shining?   Low light conditions serve no purpose in the Melee Arena.