Context Menu in Qt

Hi, i have created a context menu. But when i am hovering mouse over its item, the color of item becomes same as color of background and nothing is displayed.
Please help.

Here is my code:

Code:

m_TestViewQTreeView=new QTreeView();
 
    m_TestViewQTreeView->setContextMenuPolicy(Qt::ActionsContextMenu);
 
    QMenu *menu=new QMenu();
     menu->setStyleSheet("QMenu{background-color:red}");
 
    QAction *run=new QAction(QIcon(":/Resources/TCstart.png"),"Run",menu);
    connect(run,SIGNAL(triggered()),this,SLOT(Run_Click()));
 
 
 
    m_TestViewQTreeView->addAction(run);