Enable Dark Mode in iPhone

One of the most anticipated features of iOS 13 was Dark Mode. If you’re unfamiliar, the setting essentially inverts the colors on your screen, so all the white background interfaces turn black. 

This lets your eyes rest easier at nighttime. It also just looks really cool. 

Here’s how you turn it on!

Step-1.  Just say, "Hey, Siri, turn on Dark Mode"
Step-2.  If you prefer not to use Siri, you can tap the Settings icon
Step-3.  Tap Display & Brightness
Step-4.  Then choose between light and dark mode!
Step-5.  That's it!