This script is for those of us who cannot stand the bright, white screen of Swagger UI. It is adapted from the theme described and posted here by Amoenus:
https://amoenus.dev/swagger-dark-theme
https://github.com/Amoenus/SwaggerDark/blob/master/SwaggerDark.css

The adaptations I made are for people like myself who can't just willy-nilly change the css in the company's implementation of Swagger, but who prefer a dark theme. Also, since the original did not cover the version of Swagger that we use in a couple of our projects, I added more CSS to cover that. Both of the versions that I am currently using render well in this implementation of the Swagger-UI-Dark theme here.