Swift Minimal is a Substratum theme with more than 160 overlays, each with a dark or black option, supporting the Samsung S7, S8 & Note 8, including the S8 Oreo beta.
INSTALLATION: Theme requires the paid Samsung add-on for Substratum. Make sure your system supports the use of a Substratum theme. Download the Substratum theme engine app, the add-on, and the theme. Open up the Substratum app and you’ll find the theme inside. Open it and select your Android version in the menu at the top. Select the apps you want to theme and hit install. Wait until all overlays are installed and then reboot.