Thread:Deathstalker666/@comment-1915529-20140702204420/@comment-3547390-20150119210756

Basically. Back in the day I could access the Wad files, but that didn't tell me what belonged where and it would have been a hit and miss. I can now see all the textures that can be found in a certain level, meaning it is no longer guesswork as to what the files are in a WAD.

Yes, I was thinking that as well. I might need to bring back the full list of lights.

Yes, it definitely looks like it could be the same thing. They originally would use Doom textures and I don't think there was real concern to change a texture nobody would normally see (that texture doesn't get rendered in-game, it is a developer tool).