In the N++ repo, I commented in an issue about missing styles/languages,

I have just released a script for the PythonScript plugin which will help to automate incorporating new languages and styles from stylers.model.xml into your active stylers.xml and any themes you have on your computer (whether in %AppData% or the install directory).

The script, and how to use it, are described in this Community Forum post. It was designed to add the new stuff without deleting any of your customizations.

@chcg replied,

Would it be ok for you that I add your script to the example scripts of PythonScript ? Or would you create a PR?

I wanted to bring that conversation over here, so it's not cluttering that other issue.