This livery is awesome once I figured out how to install it.
When I installed it I was wondering why it wasn't showing up in my Prepar3d.
In the livery folder (FSLabs>SimObjects>Airplanes>FSLabs A320 CFM>BA_EUUA_2020) I had to write an extra line of information to the "fltsim.cfg" file.
Type "airline_icao_code=BAW" at the bottom of the list and save, it worked like a charm.