If you followed our Kickstarter, you may have noticed that early images of the Afterworld Express trains look different to how they do in the final game. They should be a translucent-yellow, but earlier versions used a hard white coloring instead. This was a miscommunication on our end; the trasnslucent-yellows were the only trains we wound up printing.
(If you notice any other discoloring/irregularities feel free to send us a ticket!)