The plot functions that are used in the report have Roxygen documentation now. There's also a vignette called "Visualizations" that shows and explains the plots along with the corresponding plot function.

Thank you for clarification!

I started with the roxygen documentation and found that the NAMESPACE file can be generated automatically by using the "export" tag.

I did not try it yet. Did you? Currently, I don't want to take the risk of breaking my running development environment.

The legend could be moved to the bottom.

What is the issue with the current implementation?

Another solution is to use a numeric input field that does not accept other characters.

In my opinion, the functionality that we want to keep should also have unit tests to (1) indicate that it is maintained and (2) to demonstrate how to use it.