read_name_in_friday_prayer_guts_apply_house_unity_changes_effect

read_name_in_friday_prayer_guts_apply_house_unity_changes_effect = {
	# Twiddle with house unity a smidge.
	## We need to invert the triggers before the decision is taken, so we add a flag that'll only be applied when the effect runs.
	add_character_flag = fp3_friday_prayer_twiddling_house_unity_force_correct_ui
	## Ok, now, what's the UI look like before the decision is taken?
	### Moving out of sync.
	if = {
		limit = {
			NOT = { has_character_flag = fp3_friday_prayer_twiddling_house_unity_force_correct_ui }
			exists = house.house_head
			this != house.house_head
			OR = {
				AND = {
					has_trait = fp3_struggle_supporter
					house.house_head = { has_trait = fp3_struggle_supporter }
				}
				AND = {
					has_trait = fp3_struggle_detractor
					house.house_head = { has_trait = fp3_struggle_detractor }
				}
			}
		}
		add_clan_unity_interaction_effect = {
			CHARACTER = root
			TARGET = root.house.house_head
			VALUE = major_unity_loss
			DESC = clan_unity_name_read_in_friday_prayer_rebellious.desc
			REVERSE_NON_HOUSE_TARGET = no
		}
	}
	### Moving into sync.
	else_if = {
		limit = {
			NOT = { has_character_flag = fp3_friday_prayer_twiddling_house_unity_force_correct_ui }
			exists = house.house_head
			this != house.house_head
			OR = {
				AND = {
					has_trait = fp3_struggle_detractor
					house.house_head = { has_trait = fp3_struggle_supporter }
				}
				AND = {
					has_trait = fp3_struggle_supporter
					house.house_head = { has_trait = fp3_struggle_detractor }
				}
			}
		}
		add_clan_unity_interaction_effect = {
			CHARACTER = root
			TARGET = root.house.house_head
			VALUE = medium_unity_gain
			DESC = clan_unity_name_read_in_friday_prayer.desc
			REVERSE_NON_HOUSE_TARGET = no
		}
	}
	## And what's it look like after?
	### Moving into sync.
	if = {
		limit = {
			has_character_flag = fp3_friday_prayer_twiddling_house_unity_force_correct_ui
			exists = house.house_head
			this != house.house_head
			OR = {
				AND = {
					has_trait = fp3_struggle_supporter
					house.house_head = { has_trait = fp3_struggle_supporter }
				}
				AND = {
					has_trait = fp3_struggle_detractor
					house.house_head = { has_trait = fp3_struggle_detractor }
				}
			}
		}
		add_clan_unity_interaction_effect = {
			CHARACTER = root
			TARGET = root.house.house_head
			VALUE = medium_unity_gain
			DESC = clan_unity_name_read_in_friday_prayer.desc
			REVERSE_NON_HOUSE_TARGET = no
		}
	}
	### Moving out of sync.
	else_if = {
		limit = {
			has_character_flag = fp3_friday_prayer_twiddling_house_unity_force_correct_ui
			exists = house.house_head
			this != house.house_head
			OR = {
				AND = {
					has_trait = fp3_struggle_detractor
					house.house_head = { has_trait = fp3_struggle_supporter }
				}
				AND = {
					has_trait = fp3_struggle_supporter
					house.house_head = { has_trait = fp3_struggle_detractor }
				}
			}
		}
		add_clan_unity_interaction_effect = {
			CHARACTER = root
			TARGET = root.house.house_head
			VALUE = major_unity_loss
			DESC = clan_unity_name_read_in_friday_prayer_rebellious.desc
			REVERSE_NON_HOUSE_TARGET = no
		}
	}
	## Aaaaand remove the very legitimate and not at all hacky flag we used to trick the tooltips into behaving.
	remove_character_flag = fp3_friday_prayer_twiddling_house_unity_force_correct_ui
}

As written in game/common/scripted_effects/03_dlc_fp3_scripted_effects.txt.