Contains information about a single data series on a bar chart.
Anything that affects the entire chart should be specied upon creation
of Bars objects. Almost all features of matplotlib bar charts are
supported, and the key-word arguments are the same. Care must be
taken to enter the key-word arguments in relevant object (Bars
properties not entered into Bar properties and vice versa).

Bar.defaults shows a list of optional kwargs.

For further documentation see the following:
Bars, Data, and Figures classes
https://github.com/HenryGinn/HGUtils
https://github.com/HenryGinn/HGUtils/tree/main/Plotting
https://matplotlib.org/stable/api/_as_gen/matplotlib.pyplot.bar.html
