## PR Summary

## PR Checklist

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- [ ] Has pytest style unit tests (and `pytest` passes).
- [ ] Is [Flake 8](https://flake8.pycqa.org/en/latest/) compliant (run `flake8` on changed files to check).
- [ ] New features are documented, with examples if plot related.
- [ ] Documentation is sphinx and numpydoc compliant (the docs should [build](https://matplotlib.org/devel/documenting_mpl.html#building-the-docs) without error).
- [ ] Conforms to Matplotlib style conventions (install `flake8-docstrings` and run `flake8 --docstring-convention=all`).
- [ ] New features have an entry in `doc/users/next_whats_new/` (follow instructions in README.rst there).
- [ ] API changes documented in `doc/api/next_api_changes/` (follow instructions in README.rst there).

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