Matrix.postman_collection.jsonassetsURL andhttps://twi1ightsparkle.github.io/matrix-postman/postman_assets/
_Template.postman_environment.json
Download src/postman_assets/script.js or
src/postman_assets/style.css from the
GitHub repository, edit as required, then serve them somewhere Postman can access them using HTTP(S). Finally,
update the URL in the global assetsURL variable.
Because it's a pain to maintain.