I'm pretty sure this is a bug (I tried recently in v0.21 and in v0.22), I tried to do Elvira's quest, I can complete it normally but the sunny effect on the screen that happens when you enter Hermit's Hill does not go away if you complete the quest or if you leave the locale, it stays forever on top of the screen. So if you enter the place, your screen will forever have that effect on top of it. There's no flag to remove the effect via completion of the quest/teleport or via exiting the map.
I attatched two files, this first one is normal, before I entered Hermit's Hill.
View attachment 3109848
This second one is after I entered Hermit's Hill and went back to the village.
View attachment 3109854