Use APKPure App
Get Dark Theme Toggle old version APK for Android
अपने डिवाइस के डिवाइस थीम सेटिंग करने के लिए एक त्वरित टॉगल जोड़ता है
Note: This app only toggles the existing Device Theme setting. It will not add dark mode to your device if it's not already supported.
To get started, add the "Device Theme" Quick Toggle to your Quick Toggles panel.
This app works only on Android P and above.
More to come soon ;)