What information MSFS2020 is based on to check if the plane in front of you has a livery

Hello

If I am coming to you today it is because I have a problem for which I cannot find the solution.

Do you know what information MSFS2020 is based on to check if the plane in front of you has a livery that you have in your community?

Only Aircraft.cfg? If so, what information exactly?

Does it also take the full path?

Thanks for your help.