Reasons for building WindRose.xyz
I built this out of frustration with existing options for making windrose charts. Moreover it was a project for checking out some libraries and frameworks I wanted to learn.
Tips for further editing
Downloading the windrose chart as SVG is recommended. SVG's can be edited in a vector editing program like Inkscape (free & open-source), Adobe Illustrator, or Sketch to manually edit it.
If you know a little about SVG syntax you can open it in text editor (like VS Code) and edit it directly.