title: Using plt.show() how can I define the background color?
body: <p>When I visualize a plot, the default background color is something like gray. I want to have a white end, like the one that I obtain when I save the plot.
  <a href="https://i.stack.imgur.com/Ieein.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Ieein.jpg" alt="this is what I see with plt.show()"></a> </p>