faction_war_end_defeat_legitimacy_effect

faction_war_end_defeat_legitimacy_effect = {
	scope:attacker = {
		if = {
			limit = { is_valid_for_legitimacy_change = yes }
			send_interface_toast = {
				type = msg_legitimacy_gain
				title = legitimacy_gain_toast
				left_icon = scope:attacker
				right_icon = scope:defender
				add_legitimacy = minor_legitimacy_gain
			}
		}
	}
	scope:defender = {
		if = {
			limit = {
				is_valid_for_legitimacy_change = yes
				#prevent China from falling into Chaos when the Hegemony is claimed by not removing the legitimacy
				scope:attacker = {
					NAND = {
						is_leading_faction_type = claimant_faction
						joined_faction.special_title = title:h_china
					}
				}
			}
			if = {
				limit = {
					scope:attacker = {
						OR = {
							is_leading_faction_type = peasant_faction
							is_leading_faction_type = claimant_faction
							is_leading_faction_type = populist_faction
						}
					}
				}
				send_interface_toast = {
					type = event_toast_effect_bad
					title = legitimacy_loss_toast
					left_icon = scope:defender
					right_icon = scope:attacker
					add_legitimacy = major_legitimacy_loss
				}
			}
			else = {
				send_interface_toast = {
					type = event_toast_effect_bad
					title = legitimacy_loss_toast
					left_icon = scope:defender
					right_icon = scope:attacker
					if = {
						limit = {
							has_nomadic_legitimacy = yes
						}
						add_legitimacy = {
							value = medium_legitimacy_loss
							multiply = 2
						}
					}
					else = {
						add_legitimacy = medium_legitimacy_loss
					}
				}
			}
		}
	}
}

As written in game/common/scripted_effects/06_dlc_ce1_legitimacy_effects.txt.