On: LED lighting badly suppresses human melatonin prod...

[washadjeffmad]

Also a Pixel owner - Try wiggling the light as you walk.

Your motion sensing kicks in before either your focus or dark vision, and even if you can't "see" it, your brain can get enough information to let you navigate.

[maxerickson → washadjeffmad]

I pointed that out because it is pretty dim, I don't try very hard to use the screen as a light.