I'm using Qt and I have a QTabWidget setup in the Qt Designer Editor, you can see it in picture 1.

As you can see after Tab4 there is an empty space all the way to the right edge, in someway I need to fill that space with a color, like in picture 2. Or another solution would be that the tabs float out to cover the whole screen.

I use the following stylesheet right now:

QTabWidget::tab-bar {

 }

 QTabBar::tab {
  background: gray;
  color: white;
  padding: 10px;
 }

 QTabBar::tab:selected {
  background: lightgray;
 }

Is there a way to set the background color of the QTabBar using Qt stylesheets? Or can I get the tabs floating out to the edge using Qt stylesheets?

Thanks!