ep3_increase_resistance_effect

ep3_increase_resistance_effect = {
	save_scope_as = origin_char
	scope:story = {
		change_variable = {
			name = resistance
			add = $AMOUNT$
		}
	}
	set_variable = {
		name = resistance_gui
		value = scope:story.var:resistance
	}
	if = { #Display in green if Anglo-Saxon
		limit = {
			culture = culture:anglo_saxon
		}
		custom_tooltip = ep3_increase_resistance_effect_tt_positive
	}
	else = { #Otherwise in green
		custom_tooltip = ep3_increase_resistance_effect_tt_negative
	}

	if = {
		limit = {
			exists = scope:story.var:ruler_england
		}
		scope:story.var:ruler_england = {
			send_interface_message = {
				type = msg_resistance_rise
				title = harrying.notification_resistance_rise
				desc = harrying_resistance_rise
			}
		}
	}

	if = {
		limit = {
			character:90028 = {
				is_alive = yes
				NOT = {
					has_character_flag = hereward_settled_flag
				}
			}
		}
		character:90028 = {
			send_interface_message = {
				type = msg_resistance_rise
				title = harrying.notification_resistance_rise
				desc = harrying_resistance_rise
			}
		}
	}

	if = {
		limit = {
			scope:story.var:ruler_england = {
				any_vassal = {
					culture = culture:anglo_saxon
				}
			}
		}
		scope:story.var:ruler_england = {
			every_vassal = {
				limit = {
					culture = culture:anglo_saxon
				}
				send_interface_message = {
					type = msg_resistance_rise
					title = harrying.notification_resistance_rise
					desc = harrying_resistance_rise
				}
			}
		}
	}
}

As written in game/common/scripted_effects/07_dlc_ep3_scripted_effects.txt.