Thx! :D
Finally I can drive Ironships.
It change the way intel gathering ranges are displayed.
Vanilla:

5gRemover mod:

Personnaly I use Foxhole Intel Gradient Overlay:

This mod is only a texture pack, it just modifies a static texture showing information that never change (except during updates).
Printing railways, which are dynamic data like intel is completely different mod from a technical pov. I've never heard of a mod doing such a thing.
And because of modding restriction, I believe showing train rail lines on the minimap is something only Siege Camp can implement.
You can find it on the Foxole Mod Nexus Discord server
Link of the Discord server: https://discord.com/channels/867256068475977748/867259110067011624/1328142851187...
Link of the message containing skaj's Better Garrison Flags mod: https://discord.com/channels/867256068475977748/867259110067011624/1328142851187...