Regarding the upcoming use of shingles as a new light source a little bit of AI has been given to NPCs so that they can also actually utilize these new items.
It was mentioned in the
earlier shingle summary that lighting a new shingle when necessary is automatic for the player character. Now it's made so that your companions will also automatically set a new shingle burning if they happen to be beside the fainting one.
Moreover, villagers now also stock shingles and can utilize them to light up their cottage houses. Villagers set shingles burning only when necessary so this kind of lighting in the villages is mostly seen only during the dark autumn and winter periods.
These are future features - not yet functional in current version 3.84.2