Demo update v0.7.3
New key bindings! WASD and the middle mouse button are now used for map navigation.
Other changes:
fixed the train insertion icon in the train assembly window;
fixed trains disappearing beyond the edge of the screen (they now return to the depot);
fixed train behavior when using only a single locomotive;
hid a secret sign;
removed UI blocking by dialog windows (it was annoying);
removed the ability to mirror buildings;
fixed a crash when attempting to add a wagon to a train that was already on the tracks;
made minor train behavior improvements: the train's front now detects signs that were placed after the train had already been put on the tracks;
train camera improvements were postponed because @metalcoverua still hasn't given a masterclass on how to flip trains properly.