personality_shift_effect

personality_shift_effect = {
	if = {
		limit = { scope:has_opposing_trait = flag:arrogant }
		remove_trait = arrogant
		add_trait_force_tooltip = humble
	}
	else_if = {
		limit = { scope:has_opposing_trait = flag:humble }
		remove_trait = humble
		add_trait_force_tooltip = arrogant
	}
	else_if = {
		limit = { scope:has_opposing_trait = flag:lustful }
		remove_trait = lustful
		add_trait_force_tooltip = chaste
	}
	else_if = {
		limit = { scope:has_opposing_trait = flag:chaste }
		remove_trait = chaste
		add_trait_force_tooltip = lustful
	}
	else_if = {
		limit = { scope:has_opposing_trait = flag:gregarious }
		remove_trait = gregarious
		add_trait_force_tooltip = shy
	}
	else_if = {
		limit = { scope:has_opposing_trait = flag:shy }
		remove_trait = shy
		add_trait_force_tooltip = gregarious
	}
	else_if = {
		limit = { scope:has_opposing_trait = flag:generous }
		remove_trait = generous
		add_trait_force_tooltip = greedy
	}
	else_if = {
		limit = { scope:has_opposing_trait = flag:greedy }
		remove_trait = greedy
		add_trait_force_tooltip = generous
	}
	else_if = {
		limit = { scope:has_opposing_trait = flag:ambitious }
		remove_trait = ambitious
		add_trait_force_tooltip = content
	}
	else_if = {
		limit = { scope:has_opposing_trait = flag:content }
		remove_trait = content
		add_trait_force_tooltip = ambitious
	}
	else_if = {
		limit = { scope:has_opposing_trait = flag:impatient }
		remove_trait = impatient
		add_trait_force_tooltip = patient
	}
	else_if = {
		limit = { scope:has_opposing_trait = flag:patient }
		remove_trait = patient
		add_trait_force_tooltip = impatient
	}
	else_if = {
		limit = { scope:has_opposing_trait = flag:temperate }
		remove_trait = temperate
		add_trait_force_tooltip = gluttonous
	}
	else_if = {
		limit = { scope:has_opposing_trait = flag:gluttonous }
		remove_trait = gluttonous
		add_trait_force_tooltip = temperate
	}
	else_if = {
		limit = { scope:has_opposing_trait = flag:diligent }
		remove_trait = diligent
		add_trait_force_tooltip = lazy
	}
	else_if = {
		limit = { scope:has_opposing_trait = flag:lazy }
		remove_trait = lazy
		add_trait_force_tooltip = diligent
	}
	else_if = {
		limit = { scope:has_opposing_trait = flag:wrathful }
		remove_trait = wrathful
		add_trait_force_tooltip = calm
	}
	else_if = {
		limit = { scope:has_opposing_trait = flag:calm }
		remove_trait = calm
		add_trait_force_tooltip = wrathful
	}
	else_if = {
		limit = { scope:has_opposing_trait = flag:deceitful }
		remove_trait = deceitful
		add_trait_force_tooltip = honest
	}
	else_if = {
		limit = { scope:has_opposing_trait = flag:honest }
		remove_trait = honest
		add_trait_force_tooltip = deceitful
	}
	else_if = {
		limit = { scope:has_opposing_trait = flag:craven }
		remove_trait = craven
		add_trait_force_tooltip = brave
	}
	else_if = {
		limit = { scope:has_opposing_trait = flag:brave }
		remove_trait = brave
		add_trait_force_tooltip = craven
	}
	else_if = {
		limit = { scope:has_opposing_trait = flag:arbitrary }
		remove_trait = arbitrary
		add_trait_force_tooltip = just
	}
	else_if = {
		limit = { scope:has_opposing_trait = flag:just }
		remove_trait = just
		add_trait_force_tooltip = arbitrary

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