It looks like I need to add exception for surface "warptorio_planet_smog" and then here is no double layers of smog on the smog planet.
That is the wrong way to go about it.
And that is not the name of the surface.
Each surface in warptorio is procedurally generated with a unique name.
Please point me to where you would put that exception, and i'll help you make the right adjustments so this can be compatible with all other mods, including factorissimo and space exploration which both also use surfaces.
Or better yet, join us on discord: https://discord.gg/a9CNarA