function setColor($setting, color) {
	if (!isValidColor(color)) return;
	/**@type {HTMLSpanElement} */
	const $noIcon = $setting.get(".no-icon");
	if (!$noIcon) return;
	$noIcon.style.backgroundColor = color;
}
Sets color decoration of a setting
@param {HTMLDivElement} $setting
@param {string} color
@returns