MacOS Mojave brought along a number of new features. The most eye-catching is a system-wide Dark mode, which applies to all native Apple apps, and compliments Apple's Night Shift to calm your eyes late at night.
Enabling Dark Mode
The Dark Mode option is located in the System Preferences app, which you can open from the Dock, the Applications folder, or by clicking the Apple icon at the top of your window on "General".
At the top of the window, you can switch between Light Mode and Dark Mode. You can click on one of the options to switch to the corresponding mode.
Here you can set another function: the accent color. This determines the color of the buttons and all highlights in native apps. Surprisingly, setting the accent color to "graphite", the gray color, the dark mode slightly darker. It changes from a bluish gray to a flat gray, which you may prefer.
Unfortunately, this also makes all the accents very boring, which looks a bit strange. There seems to be no way to preserve this flat black color without the graphite accent.
Activating the Night Shift
The night shift changes the color of your display as it appears warmer (more orange) at night. Prolonged exposure to excessively blue light can put a strain on your eyes. If you usually stay up and stare at your screens, maybe it's worth trying this to save you a headache.
Open the Displays category in System Preferences.
The Night Shift tab provides an option to enable them from Sunset to Sunrise. This turns on the night shift when the sun goes down and turns it off when you wake up.
However, Apple did not invent the night shift. In fact, it comes from an old app called f.lux, which has the same goal. f.lux is still updated, offering much more features and controls than Apple's built-in option, including the ability to set two different levels for Sunset and Bedtime.
If you would like to use f.lux instead of Night Shift, it's free to download and works with any operating system.
Enable night mode at sunset (or with an abbreviation)
<img class = "alignnone wp-image-408448 size-full" data-pagespeed-lazy-src = "https://www.howtogeek.com/ wp-content / uploads / 2019/03 / ximg_5c92f3194fab1.jpg.pagespeed.gp + jp + jw + pj + ws + js + rj + rp + rw + ri + cp + md.ic.rEaw7QMWDc.jpg "alt =" NightOwl Auto Dark Mode Settings  If you'd like to go one step further, you can set a schedule to automatically turn on Dark Mode when it's too late with the NightOwl app, just install the app and turn it on at sunrise / sunset using the icon in the top menu bar the same schedule as the integrated night shift.You can also set certain times if you want.
NightOwl should be started at startup and remain in the menu bar.You can quickly activate the dark mode or deactivate it by selecting the NightOwl option in the menu bar or e use a hotkey. The default is Command + ^. You can even select specific apps to enable dark mode while others stay in bright mode.