Bug report

Bug summary

When creating a figure it is possible to use linewidth along with edgecolor to create a border around the figure. The linewidth parameter is not shown in the documentation. There is no corresponding set_linewidth figure method.

Also, when saving to a file, this border is missing.

I am using Jupyter notebook.

Code for reproduction

fig = plt.figure(linewidth=20, edgecolor='r')
plt.plot([5,6])
plt.savefig('/Users/Ted/Desktop/figlw.png')

Actual outcome (in notebook)

Expected outcome

Matplotlib version

• Operating system: OSX
• Matplotlib version: 2.1
• Matplotlib backend (module://ipykernel.pylab.backend_inline):
• Python version: 3.6
• Jupyter version (if applicable): 5.0
• Other libraries:

Updated through conda