Converting#17710 to an issue (attn@Luluser)

Sharing my work with different persons I have dealt with them having different OS and Matplotlib Backend and had to play pingpong game with trial and errors to make it work on their desktop.
I think for example that a backend versatile fullscreen command would be great. I have found examples on the web quite easily but even then in some cases it didn't work on my colleagues' computers.
Here is a slightly different code I modified from the one I found :

    plot_backend = get_backend()    mng = plt.get_current_fig_manager()    if plot_backend == 'TkAgg':#Seems to be the most used backend        try:            mng.window.state('zoomed')#for Windows users        except _tkinter.TclError:            mng.resize(*mng.window.maxsize())#for Ubuntu users    elif plot_backend == 'wxAgg':        mng.frame.Maximize(True)    elif plot_backend == 'Qt4Agg':        mng.window.showMaximized()

I am new to pull request some I mark it as a draft one. There are probably some cases forgotten, I don't pretend this code is perfect on the contrary your recommendations and enhancements are welcomed.