I used Observable Plot to build the graphs here: https://geohashing.win/

Turn on "show graph", then pan the map a bit to start things moving.

It worked fairly well, although I found there were unexpected places where certain combinations of things just weren't possible. You can have a graph of type X, and color things by Y, and in style Z...and XY works, and YZ works, but not XYZ.

(I never did work out how to change the labels for the colors so they aren't "false" and "true" but something more meaningful.)

It was a bit frustrating at times. The documentation tends to be described in terms of examples and snippets, with not enough rigorous reference material that tells you exactly what properties are available and exactly how they work.

That was a year or so ago, so likely it's improved since then.