haha,this is my peculiar way to save eyesight,and it's potent indeed. Yes,you are right,it will miss some button or gif in some sort of webpages but it is worthy to me. If I working in front of the normal desktop which of course colorful and gorgeous my eyes only bear less than two hours,and now I can work more than eight hours a day in terms of this "prussian blue" background.

Certainly,I won't cross some beautiful webpages to switch back normal background every now and then.
I just want to find the articles which of this writer or of this sort.I can't chase it in the Mikrotik wiki mainpage or the links you gave.