Yes and no. Right now you can only define ruler traits for the leader. But the syntax is correct.So like this?
Code:# Ruler ruler={ gender=female name="Kathleen Savage" portrait="human_female_04" texture=0 hair=1 clothes=4 ruler_title="King" ruler_title_female="Queen" trait="trait_ruler_logistic_understanding" trait="leader_trait_fleet_organizer" }