Hello!
This is bug for daylight in all versions of OR!?! Except light area - more far or thinner = darker and closer or fatter = lighter -> GOOD. Please you should fix issue for daylight in newer OR v2.2x and v3.0x.
--> PS: sunrise and sunset in OR are BADLY later and earlier, respectively, than in the real life and than in the astronomy's software (Stellarium...) too.
Urgent...