New York (CNN Business) Instagram is rolling out a dark mode option, the latest major app to latch onto the eye-strain-reducing, battery-saving, chic-looking trend that's sweeping the globe.

The photo-sharing app's new appearance is similar to its rivals': It's embracing the darkness by flipping the default white background to black and gray. Instagram made the theme available to iOS and Android users in an update released Monday, according to Instagram's chief Adam Mosseri.

Starting today, you can use Instagram in dark mode on iOS 13 or Android 10. Turn dark mode on your phone to try it out. 👀 — Adam Mosseri (@mosseri) October 8, 2019

To activate dark mode on an iPhone, users need iOS 13 because the new display option is only accessible through Apple's new settings. After opening the Settings menu, users need to tap Display and Brightness and press the Dark option on the right. Instagram will then flip automatically to the theme.

Android 10 users can activate it in a similar way by turning on the dark theme option in the menu settings. Instagram's dark mode can also be activated from within the app's settings for Android phone owners, even if they don't have the latest version of Google's operating system.

Facebook FB , which owns Instagram, doesn't yet have support for dark mode. But Facebook is testing it according to multiple reports . Dark mode is currently available for Facebook Messenger's app.

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