secret_faith_openly_convert_all_in_realm_specific

secret_faith_openly_convert_all_in_realm_specific = {
	if = {
		limit = {
			any_sub_realm_county = {
				has_variable = false_convert
				var:false_convert = root.faith
				faith != root.faith # Discount them if they've already been switched by the conversion action.
			}
		}

		save_scope_value_as = { # Keeping track how many counties convert
			name = num_false_converts_counties
			value = 0
		}

		every_sub_realm_county = {
			limit = {
				has_variable = false_convert
				var:false_convert = root.faith
				faith != root.faith # Discount them if they've already been switched by the conversion action.
			}
			set_county_faith = var:false_convert # Change faith
			remove_county_modifier = false_convert_modifier
			remove_variable = false_convert # Cleanup
			add_county_modifier = { # Everyone likes practicing their faith in the open!
				modifier = relieved_cryptos_modifier
				years = 25
			}
			save_scope_value_as = { # Updating how many counties convert
				name = num_false_converts_counties
				value = {
					value = scope:num_false_converts_counties
					add = 1
				}
			}
		}

		if = { # Include counties in the message if there are any
			limit = { scope:num_false_converts_counties > 0 }
			root = {
				send_interface_message = {
					type = event_religious_good_text
					title = event_false_converts.t
					desc = event_false_converts_plus_counties.desc
				}
			}
		}
	}
}

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