Use APKPure App
Get Personalize - app themer old version APK for Android
Xposed Module for theming apps
This module let you to theme 3rd part apps. Are you have a theme that you loved but not support your fovourite apps? Now you can easlly apply themes for installed apps. You can choose from supported apps (you can send me a request for your app if is not supported) also you can choose from other installed apps which can't be supported - then send me a request and i'll try to add it :)