The latter is a good way to reduce the sleep disturbance caused by blue light from the Mac’s LCD screen (same thing on iPhone). Open Settings, then Displays, then select the Night Shift tab. Nice, right? What’s missing? More controls.
Leave to a clever Mac app developer to recognize Night Shift’s limitations and options (hint: only three), and then come up with a matching utility that does more, and for now at least, is priced the same.
Shifty is a more customizable version of Night Shift and it’s one you’ll like. Look at all you get for the magical price tag of, well, almost free.
Shifty resides as a Menubar item so it’s easily accessible from within any Mac app. There’s a toggle selection to invoke Night Shift or a dark mode based on a schedule. Set a Custom schedule, too, and use the Menubar to Quick toggle directly Apple’s built-in Night Shift.
It’s like the best of two worlds. But there’s more. Click the Shifty icon in the Menubar.
There’s the aforementioned Quick Toggle to invoke Night Shift, but a manual slider bar to adjust the color temperature of the Mac’s screen to match your particular visual preference.
Also built in are options to Disable Safari (and Chrome and Vivaldi), Disable Shifty for a hour or a particular time period. Shifty even has an option for keyboard shortcuts.
Almost free? Shifty is donationware, so if you like it and use it, there’s an option to donate some 1) beer money, or, 2) developer money. Caveat? Shifty is a beta app that works well enough to show’n tell.