Liveries in this database are all based on real existing (or existed) aircraft and meant to be used in the free, opensource flightsimulator FlightGear.
Installing liveries is very easy; just unpack the downloads to the aircraft's root (eg. Aircraft/737-300/). In-sim, you will be able to select a livery through the aircraft's menu. You might find this YouTube video's instructions helpful.
FlightGear is in no way affiliated with any airline or its affiliates.
All images, logos and trademarks remain property of their respective owners.
Liveries and paintkits are released under the GNU GPL V2 license.