Would it be possible to make the Advanced Laboratories from K2 (graphics by BiusArt) also have the disco effect? I'm considering using the regular labs instead just for this, heheh

I think it is relatively easy to support any lab. In labRenderers..lua, function isCompatibleLab() the entity's name and not type is compared. E.g. the mod FE+ sets entity.name=lab-mk2/3 for its higher lab tiers. So comparing it to entity.type instead of name may solve this. I currently try this out.

Na, not working. :-( The mod look abandoned to me, last commit was April 2021.

Hey sorry it's been so long. I haven't had much time for this mod, although I would definitely like it to work with everything.

The mod is designed so that compatibility is possible to achieve from the other mod (the one adding or changing labs) in most cases. Have you asked the K2 author about this? There are instructions in the FAQ: https://mods.factorio.com/mod/DiscoScience/faq