Customize Web Notification in QWebPage

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I'm creating a simple browser using QtWebkit, I managed to add support for Notification Web API it, as in this example:

function notifyMe() {
    if (Notification.permission === "granted") {
        var notification = new Notification("Hi there!");
    } else if (Notification.permission !== "denied") {
        Notification.requestPermission(function(permission) {
            if (permission === "granted") {
                var notification = new Notification("Hi there!");
            }
        });
    }
}

<button id="nm">Notify me</button>

document.getElementById("nm").onclick = notifyMe;

My code:

QObject::connect(page,
    SIGNAL(featurePermissionRequested(QWebFrame*, QWebPage::Feature)), this,
    SLOT(featurePermissionRequested(QWebFrame*,QWebPage::Feature))
);

...

void Form::featurePermissionRequested(QWebFrame* frame, QWebPage::Feature feature) {
    switch (feature) {
        case 0:
            qDebug() << "Notification";
            page->setFeaturePermission(frame, feature, QWebPage::PermissionGrantedByUser);
        break;
        case 1:
            qDebug() << "GEO";
        break;
    }
}

Every time I click on the "Notify me" button the following message appears on the desktop:

Desktop Notification

It is possible to customize the notifications in QT? In other words, leave similar to the GoogleChrome or Firefox, like this:

Web Notification