Some Android 10 phones are getting Dark mode for the Google Play

It looks like it's still in a testing period, similar to how some got Dark mode in Gmail earlier than most. Google has been hard at work adding dark mode

Dark Mode Everything for Android and iOS » YugaTech

Google Play Store getting dark mode on Android 10 devices: Report

How to set up dark mode scheduling on your Pixel phone

Some Android 10 phones are getting Dark mode for the Google Play Store - news

Google Play rolling out Material Theme account switcher

Google Play Store gets Dark Mode switch, only available on Android 10

Google Play Store gets Dark Mode switch, only available on Android 10

Google Play Store getting dark mode on Android 10 devices: Report

Gmail And Google Play Store Apps Are Now Getting A Dark Mode Setting On Android 10