Culture Tweak
Incredibly basic culture mod for Invictus made to somewhat better facilitate conversions into CK3. This is done by re-aligning some Celtic Invictus cultures with their vanilla groups for consistency between games (ex: Ubian is Gaulish but converts to Belgae in CK3 so it’s moved there in Imperator as well).
I also added some vanilla and unused Germanic cultures for more variety when converted to migration era mods like The Fallen Eagle and or When the World Stopped Making Sense. I haven’t tested with the CK2 converter but all the cultures used are base game ones so I don’t think it should be a problem.
You could also just use it if you want to nerf Gaulish I suppose.