Adding my two cents as a livery creator:
Instead of a row of liveries to choose from (which, let’s face it, would be very long for a number of people), make it a grid style. Furthermore, maybe add the option to show/hide liveries?
Also, I’ve been trying to figure out how to convert my existing liveries to 2024 for paid addon planes and many show up as a different variant instead of being placed appropriately in the livery category. I thought it was a line or two in the aircraft.cfg file (ui_createdby, among others), but so far it’s a no go. What is it that would put my livery addons in the same variant as the default?