It's come to my attention that the origin of a trade route will ALWAYS, unchangeably, be the planet at which a freighter was created. I am incredibly surprised this suggestion has not been made previously, because it's a big deal.

I think the Freighter's home world should be the last planet on which it was docked.

The reason for this is that early on, when I want all my trade routes coming from one planet, I still want to build up several Freighters all in one burst instead of one at a time from the planet I chose.

That is all!