Hi guys, been working on this for the past couple of days. Felt like sharing. Currently still fixing some issues (texturing went wrong for some reason + adding the 'right' holiday colors) and adding more features (light patterns and what not). It's a lot of work since it's more then 1k lights. Release is hopefully before Christmas. Enjoy!
It reminds me of this mod: https://www.beamng.com/resources/christmas-tasticola-truck-trailer.1661/ Sadly it doesn't work anymore with the updates.