(station) Use empty parent sprites to optimize cropping (#81)

(agrf) Fix interaction between the squash operator and manual crop

(station) Remove unused layers

(station) oops, last commit didn't clear all "indev"...

(station) Fix registers

(station) v0.2.1: fix monorail & maglev graphics (#28)

(station) text update

(station) v0.1.2; fix traversability

(station) Update workflow script

(station) rename docs