Substratum theming is now available on the Galaxy S7 running on Android 7.0 Nougat. What’s more is that root is not mandatory for Substratum to work, but note that the theme engine should be compatible with the ROM in concern. Before proceeding, you must remember that this is still beta testing and there will be bugs.

Before Substratum existed, themes were either obtained from apps on the Play Store or were part of older custom ROMs like CyanogenMod. Substratum is very unique in that, it lets you do whatever you want to the system UI. You can have three different themes installed on your device and you can select individual elements from each theme to show only what you like. That’s some serious customization power in your hands right there.

How to install Substratum and apply themes

  1. Start by installing the APK from here.
  2. You will need to download a theme from the Play Store, which also doesn’t rely on Android System or Theme-ready Google Apps as these are root specific.
  3. Once the theme is installed and ready, you will receive a notification on the same.
  4. Open Substratum and look for the theme. On some smartphones you will need to scroll down to find the button on the bottom-right to enable/install
  5. Tap on Install.
  6. To apply the theme, simply Reboot the app.

Read: Top 20 Substratum themes you can use

A word of caution: Android System and SystemUI elements should NOT be applied yet as they could be unstable and cause your device to crash.

Via: XDA Developers