Sets the color for the grid for this instance to the given color.
        
        :param      color | <QColor>

def setGridColor(self, color):
        """
        Sets the color for the grid for this instance to the given color.
        
        :param      color | <QColor>
        """
        palette = self.palette()
        palette.setColor(palette.GridForeground, QColor(color))