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Apr 10, 2018 at 23:20
This is very cool: dynamically adjusting an Emacs theme based on the amount of ambient light:
Setting Emacs Theme Based on Ambient Light
I sit next to a window at work. On sunny days it’s easier to see a light editor theme, and when the sky is dark, a dark theme is easier on my eyes. So I decided to try to have my MacBook automatically switch the Emacs theme based on readings from the ambient light sensor.

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