Function callback

src/settings/formatterSettings.js:58–66

(key, value)

	page.show(languageName);

	function callback(key, value) {
		if (value === null) {
			// Delete the key when "none" is selected
			delete values.formatter[key];
		} else {
			values.formatter[key] = value;
		}
		appSettings.update();
	}
}