I like the idea. I can make some local fork for me if I want little changes, but it would be perfect if u add possibility to configure values, like chance and how strong qualities is. In both ways, directly (kinda like just 2 tables with values for difficulty and reward) or via formulas (personally I love formulas more).

(unfortunatelly as noob in modding I can only just tweak some values, not pro modder xd, this is the reason of this suggestion (also lazziness))

Yeah, that's fair, I originally did set values because I thought there was a mod that let you configure the qualities, and there is, but it doesn't allow the kind of configuration I was expecting. I'll go ahead and make it settings based so people can tweak it if they wish.