The other reason why this message never got posted is because this message
was sent to the now defunct mailing list hosted by sourceforge. The mailing
list moved about a year ago (I think) to python.org. You will have to
subscribe in order to post unmoderated.
https://mail.python.org/mailman/listi
At least for me gmail put your mail in the spam folder.
Anyway the inline backend is actually from in IPython/Jupyter and not in
matplotlib. I think they have changed the default a couple of times and had
the transparent as a default earlier but changed it. Looking at the current
master it looks l
