Good day, sorry if this goes against any rules about posting long after a thread had activity. But for anyone else that comes over this post looking for a solution. Using a separate program to add a filter to the Mullvad browser window to invert the coolers or any other filter that is less straining on the eyes, then pure white. Have been a functional solution for me.
I am interested if a program like Easy Window Invert that was suggested here
https://superuser.com/questions/341227/how-to-invert-colors-of-a-specific-application-or-window-only-using-magnifier
Who’d affect the security of the Mullvad browser or if it is a beater option then using an extension in the browser itself?