Mimics program "Postman" Dark Mode CSS. To disguise reddit window as work

Works with the Opera internet browser and RES.

In reddit's settings, disable subreddit custom CSS. In RES, turn off all the appearance settings that actually change the CSS (not comments for example).

I reccommend the Opera browser for this since it has a dark mode that changes the window styling to fit in with other programs dark modes (neccesarry if you are hiding window on top of programs and resizing to fit over other windows elements to blend in) and an unobtrusive (thin) square border compared to chromes white and rounded edges.