figure(num = 1, figsize=(8, 6), dpi=80, facecolor='w', edgecolor='k')
With matplotlib 0.62.4 I wasn't able to detect any effect of the 'edgecolor' property. I tried both string color values ('w', 'k' and 'r') and floating point color values (1.0, 0.95 and 0.5). What is it supposed to change exactly, the window border, the subplot border? Are my values wrong?