Take over control of the finest aspects of the system UI and personalise your Android experience without limits with the official Substratum theme engine, free to use and powered by the constantly growing, community-driven collection of beautiful overlays.

Theme engine support:

Stock Oreo (OMS): Compatible with rooted and unrooted devices, in the case of the latter the Andromeda plugin is needed for Substratum to function correctly. You can find it at the Google Play Store.

Detailed guide:

A detailed guide can be found at XDA developers.

Disclaimer:

Having external, third party theme clients installed may cause issues with Substratum, including unforeseen bootloops, crashes, and more. Customer support will refuse to provide assistance to users running such applications, including Swift Installer.

Note: the app's repo is no longer maintained, so there won't be any further updates.

Wants root