'Set the background color of the GraphicsView.
To use the defaults specified py pyqtgraph.setConfigOption, use background=\'default\'.
To make the background transparent, use background=None.'

def setBackground(self, background):

    self._background = background
    if (background == 'default'):
        background = getConfigOption('background')
    brush = fn.mkBrush(background)
    self.setBackgroundBrush(brush)
