Zathura
The best PDF viewer ever<C-r>will “recolor” the document, (mostly) inverting the colors in a PDF. This more or less acts as a PDF dark mode- Can set specific light and dark colors with
set recolor-<dark/light>color "#<hex>"
- Can set specific light and dark colors with
s: fits the page to the width of the viewer, almost always what I wanta: fits the page size to the viewer