How do I style the box in a checkable QAction in a QMenu?

My checkable menu works but I cannot figure out how to change the look of the checkbox itself?

download.png I get this

images.jpg But I want this


Qt Code:
  1. QMenu* mySubmenu = addMenu(tr("MySubmenu"));
  2. QAction *pAction;
  3.  
  4. pAction = new QAction("Option 1");
  5. pAction->setCheckable(true);
  6. pAction->setChecked(isChecked());
  7. connect(pAction, &QAction::triggered, this, [=](bool checked) { onSubmenuClick(); } );
  8. mySubmenu->addAction(pAction);
  9.  
  10. pAction = new QAction("Option 2");
  11. pAction->setCheckable(true);
  12. pAction->setChecked(isChecked());
  13. connect(pAction, &QAction::triggered, this, [=](bool checked) { onSubmenuClick(); } );
  14. mySubmenu->addAction(pAction);
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