message: Change the styling of the presentation clock.
  use the highlight color/text so it gets a bit more attention.
diff: @@ -36,8 +36,9 @@ MainUI::MainUI() : QMainWindow(), ui(new Ui::MainUI()){
  connect(clockTimer, SIGNAL(timeout()), this, SLOT(updateClock()) );
  //frame_presenter = new QFrame(this);
  label_clock = new QLabel(this);
  - label_clock->setAlignment(Qt::AlignVCenter | Qt::AlignRight);
  + label_clock->setAlignment(Qt::AlignCenter );
  label_clock->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Preferred);
  + label_clock->setStyleSheet("QLabel{color: palette(highlight-text); background-color: palette(highlight); border-radius: 5px; }");
  //Now put the widgets into the UI
  this->setCentralWidget(WIDGET);
  connect(WIDGET, SIGNAL(paintRequested(QPrinter*)), this, SLOT(paintOnWidget(QPrinter*)) );
  