I was reading both dev diaries and I just had another thought about a way to make the Persian league stand out further.
Other factions tend to use single color schemes on their ship, but the League is all about (on paper) the rights of individual planets to run things their way.
With that in mind, why not have league ships display that with varied color schemes, the majority should use Kazeron colors (to represent their overall dominance), but there should be a smattering of other colored ships within the same fleets, it'd help the League feel more like the uneasy chaotic alliance it is, rather than just another monolithic factions.