colors unsorted
sorted by hue, sat, val
adding axes one at a time
three column arrangement
docstring and pep8
six and future imports
Merge pull request #2801 from fariza/named_colors

Named colors example
GTK3Agg backend: Only convert the cairo context to a cairocffi context once.
Merge pull request #2813 from timovwb/master

GTK3Agg backend: Only convert the cairo context to a cairocffi context o...