public static function load_cookie() {

		$theme_name  = filter_input( INPUT_COOKIE, self::get_cookie_name() );

		if ( ! $theme_name ) {
			return;
		}

		$theme = wp_get_theme( $theme_name );

		if (
			$theme->exists()
			&& $theme->get( 'Name' ) !== get_option( 'current_theme' )
			&& $theme->is_allowed()
		) {
			self::$theme = $theme;
		}
	}