When the web browsers first came into existence, it was possible to override the intent of the web designer. There weren't too many settings. You could locally control the color and font of text, unfollowed links, followed links, and the background. This was a continuation of a tradition of command line interfaces that allowed users to achieve settings they found comfortable. As web design developed, using these settings became impractical. I am not even sure if they still exist.
This page advocates for allowing uses turn off dark mode. However the added cognitive burden of doing so my be enough for the user to lose interest and move on. I am interested in exploring the idea that users could consistently view content in a palette they find most comfortable.
Are there any frameworks in existence or development that would allow a user to select a palette they are comfortable with and have it applied to all the content they view?