A new light source is coming up as we'll be adding shingles to the game.
A shingle, or
päre (in finnish), is a thin oblong piece of (pine) wood which were burned to produce light, and to make baskets as well. As a light source you may think them as all wooden candle of a sort.
It may feel like a just one small item for an adventurer in the dark cabin, but the required and atmospheric additions will make producing and using shingles a rather significant feature. Traditionally shingles were burnt in a shingle holder which is a stand that keeps the shingle in a good angle for proper lighting and burning. It may be that they were also sometimes just inserted between the logs in the wall - but one had to be understandably cautious without a proper holder.
I don't know yet if a shingle holder will be required in the game but the idea is that you could leave a burning shingle in place eg. inside your cabin. And moreover, as the shingles don't burn very long we would want to feature automatic "replace a shingle" mechanism where a new shingle eg. from a pile next the burning one, would be lighted automatically if the character is beside the burning shingle when it fades out. This way you could light a shingle, put a pile of new ones beside it, and not need to worry about replacing the burning shingle in time even if the task you were doing would take a long time.
Here's an image of a shingle in a simple single holder.
More shingle news will be posted when the things have proceeded further. And in the background the transition to pausable crafting continues. Oddities with the pausable mechanics have been pleasantly scarce in the latest release so we're on good roll with it.
These are future features - not yet functional in current version 3.84.2