Interesting question here.
I actually have set my wake time as 3 hours earlier than my actual wake time, as I want my computer to dim earlier than the software allows.
I was listening to a Podcast episode with Dr Rhonda Patrick, and her sleep expert guest - and suggestion was to start reducing light/ wearing blocker glasses/ sun glasses from 5pm if you are sleeping at 11pm.
So I was hoping for a "red" screen from 8pm or so.... or even earlier... at dusk ideally...
Basically I agree with the ability to be more flexible...