title: How to change QTableView border color?
body: <p>I have a QTableView, I can open a lot kinds of files, but when I open one specific kind i want to know that by changing the border color of the QTableView</p>
  
  <p>How can I change the color of the QTableView ?
  border of all the QTableView not borders of the cells </p>
  
  <p>Thanks.</p>