title: Set Background Color of QChartView
body: <p>Is it possible to change the background/face color of QBarSeries in pyqtchart? By default background is coming as white, is there any way to change it ?</p>
  <p><a href="https://i.stack.imgur.com/hONUr.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/hONUr.png" alt="enter image description here" /></a></p>