portrait_low_nobles_trigger

portrait_low_nobles_trigger = {
	trigger_if = {
		limit = { exists = this } # To check if this is an actual character
		NOT = {
			primary_spouse ?= {
				AND = {
					highest_held_title_tier >= tier_duchy
					trigger_if = {
						limit = { government_is_japanese_trigger = yes }
						NOT = { government_has_flag = government_is_japan_feudal } # Japanese bushi class always wear low/war nobility clothing
					}
				}
				trigger_if = {
					limit = { government_has_flag = government_is_landless_adventurer }
					has_realm_law = camp_purpose_legitimists
				}
			}
		}
		NOR = {
			portrait_imperial_trigger = {
				CULTURE_INPUT = $CULTURE_INPUT$
			}
			portrait_royalty_trigger = {
				CULTURE_INPUT = $CULTURE_INPUT$
			}
			portrait_high_nobles_trigger = {
				CULTURE_INPUT = $CULTURE_INPUT$
			}
		}
		OR = {
			AND = { # Nobles in general
				has_no_particular_noble_roots_trigger = no
				portrait_$CULTURE_INPUT$_clothing_trigger = yes
			}
			AND = { # Members of Council
				liege ?= {
					highest_held_title_tier >= tier_duchy
				}
				OR = {
					has_council_position = councillor_chancellor
					has_council_position = councillor_steward
				}
				portrait_$CULTURE_INPUT$_clothing_trigger = yes
			}
			AND = { # Courtiers
				highest_held_title_tier < tier_county
				court_owner ?= {
					highest_held_title_tier > tier_duchy
				}
				portrait_$CULTURE_INPUT$_clothing_trigger = yes
			}
			portrait_mayor_trigger = { # Mayors
				CULTURE_INPUT = $CULTURE_INPUT$
			}
			AND = { # Mercenaries
				government_has_flag = government_is_mercenary
				portrait_$CULTURE_INPUT$_clothing_trigger = yes
			}
			AND = { # Adventurers
				government_has_flag = government_is_landless_adventurer
				NOR = {
					has_realm_law = camp_purpose_legitimists
					liege ?= { has_realm_law = camp_purpose_legitimists }
				}
				portrait_$CULTURE_INPUT$_clothing_trigger = yes
			}
			AND = {
				is_ruler = yes
				highest_held_title_tier <= tier_county
				# Japanese bushi class always wear low/war nobility clothing
				trigger_if = {
					limit = { government_has_flag = government_is_japan_feudal }
					is_independent_ruler = no
				}
				NOR = {
					government_has_flag = government_is_herder
					AND = {
						government_has_flag = government_is_republic
						primary_title.tier > tier_barony
					}
					AND = {
						is_ruler = yes
						government_has_flag = government_is_theocracy
					}
				}
				portrait_$CULTURE_INPUT$_clothing_trigger = yes
			}
			AND = {
				exists = primary_spouse
				OR = {
					is_ruler = no
					highest_held_title_tier = tier_barony
				}
				primary_spouse = {
					OR = {
						highest_held_title_tier = tier_county
						government_has_flag = government_is_mercenary
						AND = {
							government_has_flag = government_is_landless_adventurer
							NOT = { has_realm_law = camp_purpose_legitimists }
						}
						# Japanese bushi class always wear low/war nobility clothing
						trigger_if = {
							limit = { government_has_flag = government_is_japan_feudal }
							is_independent_ruler = no
						}
					}
					NOR = {
						AND = {
							government_has_flag = government_is_republic
							primary_title.tier > tier_barony
						}
						AND = {
							is_ruler = yes
							government_has_flag = government_is_theocracy
						}
					}
					portrait_$CULTURE_INPUT$_clothing_spouse_trigger = yes
				}
			}

As written in game/common/scripted_triggers/00_clothing_triggers.txt.