Thomas  

@amiloradovsky Yes, the idea of blue light keeping you awake was a conjecture from the 1970's, and was debunked. The same level of blue light has slightly less of an effect than red or green, so those "night modes" are actively worse. Just reduce brightness.
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keverets
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@tfb @amiloradovsky@functional.cafe @selfcare blue light may not affect drowsiness, but a more red light does not impede night vision as much (hence its frequent use in photography/astronomy).

So, people may be doing the right thing for the wrong reasons.

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