So, apparently, when two lights overlap, they become brighter. Is there a way to turn this off and make it so they maintain the same level of light? Perhaps a module that does the trick?
All i could find online was people suggesting the Perfect Vision mod, which unfortunately doesn't work on v11 anymore.
This might be an effect of how lights are implemented (texture blending modes compounding) and it could very well be really hard to change without re-architecting the entire lighting system.
It wouldn't be idea, but I think a wall that only block illumination (but not vision, movement, or sound) would do the trick if you placed it exactly in between..