I'm working up some information for my players' Library Data program, and would like to make a few Astrographic maps that they use in the Sword Worlds Confederation. For example, in the Imperium an Astrographer might refer to the "Gram Arm" of the Spinward Main, and provide a map like this:
But they don't refer to the Astrographic Clusters the same way in the Sword Worlds. They have the Haestskoen (Horseshoe) which has Gram, Joyeuse, Colada, Tizon, Hrunting, Margesi, Mjolnir, and Gungnir. I'd like to do my own color-coded map, and it seems clear to me the dot maps on the wiki may have been prepared from the travellermap.com. Does anybody know how the wiki Astrographic maps were made?

But they don't refer to the Astrographic Clusters the same way in the Sword Worlds. They have the Haestskoen (Horseshoe) which has Gram, Joyeuse, Colada, Tizon, Hrunting, Margesi, Mjolnir, and Gungnir. I'd like to do my own color-coded map, and it seems clear to me the dot maps on the wiki may have been prepared from the travellermap.com. Does anybody know how the wiki Astrographic maps were made?