coronation_ceremony_prestige_effect

coronation_ceremony_prestige_effect = {
	if = {
		limit = {
			coronation_vassals_approval_value >= 3
		}
		add_prestige = massive_prestige_gain
	}
	else_if = {
		limit = {
			coronation_vassals_approval_value >= 2
		}
		add_prestige = major_prestige_gain
	}
	else_if = {
		limit = {
			coronation_vassals_approval_value >= 1
		}
		add_prestige = medium_prestige_gain
	}
	else_if = {
		limit = {
			coronation_vassals_approval_value >= 0
		}
		add_prestige = minor_prestige_gain
	}
	else_if = {
		limit = {
			coronation_vassals_approval_value >= -1
		}
		add_prestige = miniscule_prestige_gain
	}
	else_if = {
		limit = {
			coronation_vassals_approval_value >= -2
		}
		add_prestige = minor_prestige_loss
	}
	else_if = {
		limit = {
			coronation_vassals_approval_value >= -3
		}
		add_prestige = medium_prestige_loss
	}
	else_if = {
		limit = {
			coronation_vassals_approval_value >= -4
		}
		add_prestige = major_prestige_loss
	}
	else = {
		add_prestige = massive_prestige_loss
	}
	#Custom tooltip triggers need to match coronation_vassals_approval_value
	#Tooltip major reasons why or why not
	if = {
		limit = {
			has_activity_intent = coronation_embrace_supporters
		}
		custom_tooltip = coronation_prestige_embrace_supporters
	}
	if = {
		limit = {
			combined_supporter_vassal_strength > combined_detractor_vassal_strength
		}
		custom_tooltip = coronation_prestige_improved_by_supporters
	}
	if = {
		limit = {
			combined_detractor_vassal_strength > combined_supporter_vassal_strength
		}
		custom_tooltip = coronation_prestige_harmed_by_detractors
	}
	if = {
		limit = {
			OR = {
				any_targeting_faction = {
					faction_power >= scope:host.current_military_strength
					NOT = {
						faction_is_type = peasant_faction
					}
				}
				any_targeting_faction = {
					count >= 2
					NOT = {
						faction_is_type = peasant_faction
					}
				}
			}
		}
		custom_tooltip = coronation_prestige_harmed_by_factions
	}
	if = {
		limit = {
			OR = {
				has_trait = bastard
				has_trait = denounced
				has_trait = wild_oat
				has_trait = legitimized_bastard
				has_trait = gallivanter
				has_trait = disinherited
				has_trait = bastard_founder
				has_trait = disloyal
			}
		}
		custom_tooltip = coronation_prestige_harmed_by_ignoble_traits
	}
	if = {
		limit = {
			OR = {
				AND = {
					tyranny >= high_tyranny
					dread < high_dread
				}
				AND = {
					tyranny >= medium_tyranny
					dread < medium_dread
				}
			}
		}
		custom_tooltip = coronation_prestige_harmed_by_tyranny

As written in game/common/scripted_effects/10_ach_effects.txt.