I already have the lowest brightness level, but can you somehow make it even darker with some tricks?
Dark foil on it xD
(͡ ° ͜ʖ (͡ ° ͜ʖ (͡ ° ͜ʖ (͡ ° ͜ʖ ͡ °) ͜ʖ ͡ °) ʖ ͡ °) ʖ ͡ °)
There are certainly programs
Turn it off completely with a key combination.