Saving color setting

[waynew]

Thanks to the Mole for trying to help with my previous post, but the problem remains.

I'm just trying to set the window color and save it so I can restore it on startup, and it's not working. When I try to get the color to save it to the database, the color is empty or invalid.
Here's the code:

void MainWindow::setColors() {
    QColor color = QColorDialog::getColor();
    QPalette palette = QPalette(color);
    QApplication::setPalette(palette);
 
    QSettings settings(this);
    settings.setValue("MainWindow/Color", color);
}

void MainWindow::setColors() {
    QColor color = QColorDialog::getColor();
    QPalette palette = QPalette(color);
    QApplication::setPalette(palette);

    QSettings settings(this);
    settings.setValue("MainWindow/Color", color);
}

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void MainWindow::saveLook() {
    QSettings settings(this);
    QString color = settings.value("MainWindow/Color").toString(); // tried .value<QColor>() and it didn't work either
    QFont font = settings.value("MainWindow/Font").value<QFont>();
 
    qDebug() << "save color will be " << color;
    qDebug() << "save font will be " << font;
 
 
   QSqlDatabase db = QSqlDatabase::database(ctrlConn);
    QSqlQuery query(db);
       query.prepare("UPDATE settings set color =?, font =?  where id=1");
       query.addBindValue(color);
       query.addBindValue(font);
       query.exec();
 
       qDebug() << "saving look " << query.lastError();
}

void MainWindow::saveLook() {
    QSettings settings(this);
    QString color = settings.value("MainWindow/Color").toString(); // tried .value<QColor>() and it didn't work either
    QFont font = settings.value("MainWindow/Font").value<QFont>();

    qDebug() << "save color will be " << color;
    qDebug() << "save font will be " << font;


   QSqlDatabase db = QSqlDatabase::database(ctrlConn);
    QSqlQuery query(db);
       query.prepare("UPDATE settings set color =?, font =?  where id=1");
       query.addBindValue(color);
       query.addBindValue(font);
       query.exec();

       qDebug() << "saving look " << query.lastError();
}

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The problem is (just for Wysota ) qDebug() save color is empty.
If I use .value<QColor>() instead of .toString(), the qDebug() says the color is invalid.

I just want to save the user chosen color to my database and restore it on start up.
Any ideas?