Created from openclipart (public domain)
passenger.svg: https://openclipart.org/download/184809/vagon2.svg
loco.svg: https://openclipart.org/detail/218332/toy-train-with-5-wagons
wood.svg: https://openclipart.org/detail/218332/toy-train-with-5-wagons
coal.svg: https://openclipart.org/detail/184808/vaga%C2%B3n-de-carbon-coal-wagon
