With several smartphone manufacturers incorporating some variation of a blue light filter, calling it things like: night mode, night light, eye comfort, and blue filter, the feature was bound to become popular among power users. Whatever the name may be, they all do the same thing: blue and white tones are filtered out and replaced with warmer tones anywhere between amber and yellow.
We are sensitive to blue light, which keeps us up late at night. Softer amber tones are also less harsh to our eyes when we view our smartphones in complete darkness.
In macOS latest version of Sierra 10.12.4 beta, the Night Shift feature is natively supported to allow the filtering of blue light, helpful to reduce eye strain in extended periods of use into the late night hours. Though, the only way to get it right now is with a developer account, as the beta is not yet open to the public. We should see Night Shift make it to the public beta quite soon.
If you donít have this feature on any of your devices or computers, you can install the cross-platform alternative that started it all: F.lux is available for macOS, Windows, Linux, and I personally like to use Twilight for an Android phone that doesnít have the feature baked in.
Yes, and yes.
Windows 10 for the win :)
To be honest I'm doing this myself since i bought my macbook pro back in 2012. All it takes is do create a custom colour profile with a different white point, and switching between those on a mac is as simple as making a click.