This is a very narrow argument, it's well know how much eye strain is caused by staring into a full screen LED all day. A darkmode allows concentration and foc

This is a very narrow argument, it's well know how much eye strain is caused by staring into a full screen LED all day. A darkmode allows concentration and focus over longer periods without strain that completely outweigh any reduced focus due to slightly worse perceived contrast... not to mention how much better rested you will be after using darkmode before bed.