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So. At the current time, the user's livery is displayed by matching the "title" parameter in the [FLTSIM] block. I think that this is not entirely correct behavior, if there are two liveries with the same name, then only one works (an error about this is displayed in the devmode console). Also, the name of the same airline may differ (livery developers do not really try to unify this point)
My suggestion is to make the livery display based on the parameters:
"icao_airline" from the FLTSIM block (even if the user changes his callsign, take the parameter from the livery)
Optionally, you can use the "atc_id" or "atc_flight_number" match in case the airline has several livery variations (example: Air India Express, Frontier).
This will make it easier to control the display of custom liveries with variability and without errors.
Also, if the custom livery is not found in the list of liveries, then display the default livery, the very first one in the list, or add the default parameter for FLTSIM.
