you can try to use Dark Reader extension, it produce dark gray background. Maybe together with night mode if you don't want flashing withe background.
Dark reader makes the browser performance choppy. I don't prefer using it.
I love your night mode very much and would like to use it all the time, but there are some problems. When the background of a text is a image, the text becomes barely to read.
Here for example is one of my favorite blogs with kiwis n...
Note FE has started recieving the ONE UI update so are there any developers willing to port it for S7 Edge?
Kill-switch is already on it...
Great. Can't wait for the port.
Note FE is scheduled to get pie in March. Then the dev has to "cook" the ROM for s7 edge. Everyone has to patiently wait till then.