I might be insane, but I want my screen to almost completely remove blue pixels altogether, on a schedule. Twlight comes closest to this, but it’s closed source as far as I can tell, and requires a ton of invasive permissions.
I’m using Night Owl. Works nice. You can set schedules, change the filters, shake the phone to stop the filter.
Edit, here is the link https://play.google.com/store/apps/details?id=com.evezzon.nightowl
there are lot of custom apps that do that
f.lux kinda works but doesn’t go all the way
https://play.google.com/store/apps/details?id=com.justgetflux.flux
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If you’re using Samsung there’s a feature called Extra Dim that does exactly what you want.
I have a Pixel. However, it also has an extra dimming mode, but it doesn’t actually remove blue or anything like that. Just makes the screen go darker.