How to enable YouTube Dark Mode on Android right now (Root)

oogle recently added a Dark Mode to the YouTube mobile app (following Dark Mode for the desktop website), but there’s just one problem: iOS users get it first. Dark Mode is still “coming soon” to Android and we’re not exactly sure how long it will take. The good news is the Android developer community has once again come through for us. If you have root access on your Android device, you can get Dark Mode in the app right now.

This method requires modifying the a value in the shared-prefs in /data. That’s why root access is necessary. If your device is not already rooted, check the device forums for instructions. Once you have root access, you will need the Preferences Manager app and, of course, YouTube. Here’s how to do it:

1. Download and install Preferences Manager
2. Find YouTube in the list
3. Open youtube.xml
4. Search for dark
5. Change both values from false to true
   1. If you don’t have the values, add them (theme_dark_app and theme_dark_watch_panel) and change them to true
6. Save and then force close YouTube

When you open up the app again it should be in Dark Mode. The app will have a nice dark gray background and white-on-black icons. You can scroll through videos without the blinding white interface. Thanks to XDA member AL_IRAQI for sending in this method and providing screenshots.

Latest update ( version 13.19.58 ) 
<boolean name="app_theme_dark_developer" value="true"/>
<boolean name="app_dark_theme" value="true"/>

OR USE ES FILE EXPLORER

GOTO ROOT folder.

/data/data/com.google.android.youtube/shared_pref/

There is Youtube.xml file.

Just Add

<boolean name="app_theme_dark_developer" value="true"/>
<boolean name="app_dark_theme" value="true"/>

and save.
Khalaas.