public function updateActionGet($style) : object
    {
        $response = $this->di->get("response");
        $session = $this->di->get("session");

        $key = $this->cssUrl . "/" . $style . ".css";
        $keyMin = $this->cssUrl . "/" . $style . ".min.css";

        if ($style === "none") {
            $session->set("flashmessage", "Unsetting the style and using the default style.");
            $session->set(self::$key, null);
        } elseif (array_key_exists($keyMin, $this->styles)) {
            $session->set("flashmessage", "Now using the style '$keyMin'.");
            $session->set(self::$key, $keyMin);
        } elseif (array_key_exists($key, $this->styles)) {
            $session->set("flashmessage", "Now using the style '$key'.");
            $session->set(self::$key, $key);
        }

        $url = $session->getOnce("redirect", "style");
        return $response->redirect($url);
    }