Improved lighting from citys in VR?

[Gun Jam]

I was flying a night mission, Syria and noticed that the lights from the city looked much improved over 2.5. The lights looked denser brighter and visible from a longer range. I didn't see any mention in change log that specifically addressed ground lighting. Were changes made for lights particularity cities or is this just from perhaps changing a settings slider and not realizing it made that much difference with ground lighting. 

 

Thanks