Defullbrighting maps. Where to get?

Few time ago someone posted link to defullbrighted maps. I can’t remember where it was. Someone can share it again?
And how to use defullbright-v0.2 tool? I create defullbrighted wad but how exactly implement new textures back to map? TexMex proposes to save changed bsp as wad and?.. what

This one?

Great! Thanks!
And finally this one:

Upd: this is not maps but only defullbrighted external textures.
Is there any way to implement them into bsp file?