I have seen there are other backgrounds for when checking out locos option,(called dioramas i think?)so how do you get more?I own many different routes but haven't gotten any extra backgrounds yet.
You need to complete Tier 1 of 'Mastery' to get the dioramas. https://live.dovetailgames.com/live/train-sim-world/profile/mastery When you boot up TSW, it'll prompt you with a Mastery screen, and you can see your progress in each route. The only issue is, Mastery is buggy and broken. I've managed to get two dioramas so far though.
Do we know whether the mastery rewards will continue into TSW2? e.g. if we have already completed them we get the dioramas in the new game?