We use the last piece of bundle name, because asking macOS for the full name uses 300% as much CPU.

I could probably fix this but that is the reason. :)

Have you tried "dim on disable"? It may help.

Regarding your question:

The system in the eye that adapts to color (and brightness) takes several minutes to adjust fully.

So one case for this feature is if you are using Photoshop and quickly responding to some IM messages or emails that come in. And basically you want to stay adapted to the "brighter" condition and not roll back and forth.

In this case, it turns out flipping between settings very quickly is incredibly disconcerting...the early prototypes were so bad I held back for a couple years on shipping the feature at all. (I thought the slower transition helped a lot!)

There is no good solution in f.lux right now for changing between white pages and dark ones, but it is important I agree. We have had prototypes of this for years but they basically involve hitting the GPU pretty hard to figure out what the screen contents currently are....impacts battery and overall performance, etc. (There are ways to do this but they are not exposed by the OS.)

Thanks, Colt1855

@lorna I have f.lux set to start on login, I use custom color settings, I have notifications and backwards alarm clock set, and no color effects selected. The other disable options work fine (for 1 hour, until sunrise, and for full-screen apps) - just the option to disable for specific apps doesn't work. That's a real problem for me because I discover that I have been editing photos with f.lux active, so the colors are wrong!

Cool! Very thoughtful of you. Thank you :) and keep up the good work!

@herf 👍 great ! When will you release it ?

@alexchandel This is on the future features list, but there's no way to do it currently.

Hey, disabling "macOS dark theme at sunset" fixed the problem, thanks so much!

Whew! You're welcome.

It's like 2am here. I'm not really at my best. I'm sorry. You're right.

The two apparent curved lines is really a shaded section outlined by white lines so that it stands out better. It's a representation of how sensitive to light you likely are. The "fatter" it is, the more sensitive to light you likely are. It's based on scientific research.

The circle represents you. The circle's location on this light sensitivity 'graph' tells you what your sensitivity to light most likely is. At the time of your screenshot (provided all of your settings are accurate for you), f.lux was telling you that your sensitivity to light was on the decline, which makes sense because it was saying you wake up in 4 hours. The 'x-axis', as you described it, is where you are the least sensitive to light (in all likelihood, based on scientific research).

The dark orange line is bedtime mode.

The light orange line is sunset mode.

The blue line is daytime mode.

I don't have the Mac version (I have the beta version for Windows, which is very similar to the Mac version), but I think "12 sunlight hours" means that f.lux goes into daytime mode for 12 hours. So, I guess it's telling you that you could go out and get 12 hours of sunlight if you wanted to.

Yes we have a new version that is noting recommended sleep timing by age, but we need to put the UI back in for it.

Sorry I changed the code before I did the UI.