What factors influence the "system category"? e.g. "Empire Bastion"

The system category is decided by what is constructed in it- specifically starbases, colonies, and mining/research stations. As far as I can tell, it uses a prioritised list and picks the highest priority description that can apply.

The system description will be the first possibility from this list:

• Empire Homeworld: The homeworld of the founder species of the empire
• Empire Capital: The capital of the empire

• Starbase Title: The title of the starbase in the system, based on its most built module. This is either:

  • Trading Hub (Trading Hubs),
  • Empire Bastion (Weapons),
  • Shipyard System (Shipyards), or
  • Naval Base (Anchorages).

  I haven't checked how priorities work in a tie, since I rarely mix modules.

• Empire Colony: The system contains one or more colonies but no starbase modules (either an outpost or a starbase with nothing built)
• Research Outpost: The system contains one or more research stations, and has at least as many research stations as mining stations.
• Mining System: The system contains two or more mining stations and has more mining stations than research stations.
• Frontier Outpost: None of the above.

So far I see,

• Naval Base = Anchorage. Build lots of Anchorages
• Trading Hub Build lots of Trading Hub
• Shipyard System Build lots of Shipyards
• Research Outpost System has more than average Research
• Mining System System has more than average Resources
• Frontier Outpost System has less than average everything
• Empire Bastion System has more than average Weapons
• Empire Colony System has Pop (whether Planet or Habitat)
• Empire Homeworld Self-evident
• Empire Capital If you've moved your capital from your homeworld.

Anyone please update if I'm wrong