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I like your original idea better, Grand Admiral, I have seen it put to great use elsewhere.
I'm a roleplaying guy, so the only downside I see to the faction leader graphics is that, because of how they are animated, I don't think it would...
Stories and more roleplaying possibilities are indeed what I would like to see in future updates and expansions.
I wouldn't go that far, but I do agree Stellaris has some enervating features and that IG:S is, if not already the better game, at least the most...