Drop your replacement audio files in this folder, named to match the
"sound" entries in ../replacers/DropshipMusic.json:

  IcecreamTruckV2.ogg
  IcecreamTruckFar.ogg
  IcecreamTruckV2Christmas.ogg
  IcecreamTruckV2ChristmasFar.ogg

.ogg, .wav, and .mp3 are all supported. Delete this file once your
audio is in place.
