Using default matplotlib settings / stylesheets support #143
Description
How about setting default configuration values to their matplotib value if it exists, at least for some of the settings?
In the example above, the default colormap is set to "fire" whereas I would like the default "viridis" from matplotlib instead.
This may apply to several other conflicting settings.
I agree that you want to make all proplot plots beautiful by default, but I'm not sure all default matplotlib settings must be changed.
A solution would be to check if a config value is set to "None" by the user, and in this case to use the matplotlib value if it exists.