Dark mode lightens the burden on my eyes, kind of like a dark room is better for a headache. Though there is no conclusive evidence on whether it’s actually better for your eyes, I find using dark mode decreases eye strain and can also extend your battery life.
How to make Mac dark mode
Step 1: Go to System Preferences
From the Apple menu at the top left of your screen on your Mac, select System Preferences.
Step 2: Click General
On the window for your system preferences, select General.
Step 3: Click Dark
General settings include appearance, scroll bar settings, default browser, and more, so if you’ve never explored these settings, now’s a good time to customize your Mac.
When you click on Dark, your Mac’s buttons, menus, and windows will take on a darker appearance. If you choose Auto, your Mac will stay on Light mode and gradually transition to Dark throughout the day.
FAQ
You can also choose Light or Dark mode or Auto for both iPhone and iPad, just by going to Settings, then choosing Display & Brightness.