diarch_overwrites_old_designated_heir_apply_opinions_effect

diarch_overwrites_old_designated_heir_apply_opinions_effect = {
	scope:old_heir ?= {
		# Humble or content characters accept this for what it is.
		if = {
			limit = {
				OR = {
					AND = {
						has_trait = humble
						# ... cancelled out by...
						NOT = { has_trait = ambitious }
					}
					AND = {
						has_trait = content
						# ... cancelled out by...
						NOT = { has_trait = arrogant }
					}
				}
			}
			# Annoyance with you.
			add_opinion = {
				target = $LIEGE$
				modifier = disappointed_opinion
				opinion = -20
			}
			# Annoyance with the new co-ruler.
			## Vs. player.
			if = {
				limit = {
					# Rationale for this heinous crime at the top of this block.
					NOT = { exists = scope:ai_recipient }
				}
				add_opinion = {
					target = $CO_RULER$
					modifier = insult_opinion
					opinion = -30
				}
			}
			## Vs. AI.
			else = {
				add_opinion = {
					target = scope:ai_recipient
					modifier = insult_opinion
					opinion = -30
				}
			}
		}
		# Everyone else is outraged.
		else = {
			# Annoyance with you.
			add_opinion = {
				target = $LIEGE$
				modifier = betrayal_opinion
				opinion = -50
			}
			# Annoyance with the new co-ruler.
			## Vs. player.
			if = {
				limit = {
					# Rationale for this heinous crime at the top of this block.
					NOT = { exists = scope:ai_recipient }
				}
				add_opinion = {
					target = $CO_RULER$
					modifier = hate_opinion
					opinion = -75
				}
			}
			## Vs. AI.
			else = {
				add_opinion = {
					target = scope:ai_recipient
					modifier = hate_opinion
					opinion = -75
				}
			}
		}
	}
}

As written in game/common/scripted_effects/00_diarchy_scripted_effects.txt.