If you add a "light=2000" or similar property to something like the main stockpile or worker dwarf, it should light up the entire level. If that doesn't work just edit the light spell which I think you get by default at the start, change that value huge and one cast and you'll see everything.

Good thinking, thanks you! :)

Late reply but after testing those ideas, nothing worked it seems the light is hardcoded.

But I used magic explosion instead with large radius to quickly check around as I just wanted to see if my custom rooms spawns correctly.

Originally posted by Walter253:

Late reply but after testing those ideas, nothing worked it seems the light is hardcoded.

That's odd, I was sure I did something like this when testing the how they randomly generate rooms a few years back. I'll see if I can dig up my notes, I might a copy of the xml change I made stuffed in there.

Originally posted by Darke:

Originally posted by Walter253:

Late reply but after testing those ideas, nothing worked it seems the light is hardcoded.

That's odd, I was sure I did something like this when testing the how they randomly generate rooms a few years back. I'll see if I can dig up my notes, I might a copy of the xml change I made stuffed in there.

I did the same years ago and it worked.