The new visualization module could use a user guide and/or migration guide.

[conradhaupt]

With the addition of the new visualization submodule in #902, the need for a guide on plotting figures in analysis classes has increased. Previously, developers of analysis classes used Matplotlib in their own independent way. The new module means that users are discouraged from using Matplotlib directly, and instead to use subclasses of BasePlotter. However, the usage of these classes is only documented in the API reference (i.e., docstrings) and not as a separate user guide or tutorial.

[coruscating]

Tutorial added in #983.