Bug report

Bug summary

edgecolors is an explicit kwarg to plt.scatter(). However edgecolor kwarg takes precedence over it, although the function used to obtain the edgecolors (self._parse_scatter_color_args()) documents that edgecolors should take precedence:

Argument precedence for edgecolors:
edgecolors (is an explicit kw argument in scatter())
kwargs['edgecolor']
kwargs['color'] (==kwcolor)
'face' if not in classic mode else None

This also reproduces when substituting edgecolor with ec.

Code for reproduction

import matplotlib.pyplot as plt
c = plt.scatter([], [], edgecolors=[0,1,0,1], edgecolor=[1,0,0,1])
c.get_edgecolors()

Actual outcome

array([[1., 0., 0., 1.]])

Expected outcome

array([[0., 1., 0., 1.]])

Matplotlib version

• Operating system: macOS
• Matplotlib version: 3.3.1
• Matplotlib backend (print(matplotlib.get_backend())): MacOSX
• Python version: 3.8.5
• Jupyter version (if applicable):
• Other libraries:

Installed from conda-forge