This article explains how to use Google Docs Dark Mode, and how to turn Dark Mode on and off in the Google Docs web app, iOS app, and Android app.
How to Use Dark Mode in Google Docs
The process for enabling dark mode in Google Docs varies depending on whether you’re using the mobile app on your phone or tablet, or the web version in your browser. The mobile app has a native dark mode that you can toggle on and off, but the web app does not.
To enable dark mode on the Google Docs website, you need to install a web browser extension for your browser.
Here's how to enable dark mode on the Google Docs website: