#include <QtWidgets/QtWidgets>

int main(int argc, char *argv[])
{
  QApplication app(argc, argv);
  QPixmap pm(10, 10);
  pm.fill(Qt::green);

  const QString styleSheet = "QWidget { background: #c0c0c0; }";

  // There is only an issue with the icon if a stylesheet is applied.
  // app.setStyleSheet(styleSheet);

  QMenu *menu = new QMenu();
  menu->addAction(pm, "item1");
  menu->addAction(pm, "item2");
  menu->addAction(pm, "item3");
  menu->addAction(pm, "item4");

  QPushButton *btn = new QPushButton;
  btn->show();
  btn->setText(QString("Qt version: %1").arg(qVersion()));
  btn->setMenu(menu);

  app.exec();

}