Cool link. Always wondered what that feature was for. However, I don't quite get what you're asking 😕... From the article, it states:
Medium: 
...It seems that at this point we are not yet actually reducing the Blue light, but are kind of masking it, though the end result is there regardless.
Yeah night shift tends to be advertised more about helping you sleep, but I suppose it's just as useful for this. I've always used it on at least medium since I got my phone, and I recently turned it up to almost maximum. I use it on my PC too, believe it's called "night light" on Windows.
I think the medium one is the one that looks like this:
https://steemitimages.com/640x0/http://oi64.tinypic.com/skua6x.jpg Sorry I should have worded better what I meant. I was meaning that I have read that the reason screen light is worse than sunlight in regards to cell damage isn't because the intensity of blue light is worse, but because there is
proportionally more blue light than there is other colours. In night shift at medium, when all of the peaks are roughly the same height, then proportionally there is a similar amount of green as there is blue, however it still doesn't look like the spectrum of sunlight as it has large peaks, whereas sunlight is consistent:
http://www.crslight.com/images/sun.jpg Where I was a bit confused is this: Is there any functional difference between the night shift medium setting where all the peaks are the same height, and sunlight, where there is pretty much a smooth line and no peaks? (in regard to eyes and cell damage)?
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