Скриптовый эффект
unlock_heir_selection_effect
Определениеin_game/common/scripted_effects/country_effects.txt:89
90custom_description = {
91text = unlock_heir_selection_effect
92value = heir_selection:$type$
93set_variable = {
94name = unlocked_heir_selection_$type$
95value = yes
}
}