connect(themeActions, &QActionGroup::triggered, this, [this, theme](QAction* action) {
        config()->set(Config::GUI_ApplicationTheme, action->data());
        if ((action->data() == "classic" || theme == "classic") && action->data() != theme) {
            restartApp(tr("You must restart the application to apply this setting. Would you like to restart now?"));
        } else {
            kpxcApp->applyTheme();
            kpxcApp->applyFontSize();
        }