Swift Dark Substrate theme makes more than 200 dark apps and supports the following systems:
+ Make sure your system supports the use of a bedrock theme. See above list supported.
+ Download the theme substratum engine application and theme. When you open the substratum application you will find the theme inside.
+ Open the theme in the substratum application and select your Android version from the menu at the top. Also select the applications you want to install the theme and press.
Download Swift Dark Substratum Theme +Oreo Samsung theme 16.6 Patched APK For Android