Rootless themes are dead. That’s it. They’re gone.
User customization is one of the reasons so many of us choose Android as our mobile OS of choice, and in 2017, an app called “Andromeda” came out as a way to use powerful Substratum themes to completely change just about every aspect of your phone’s UI and popular apps without needing root access.
Right after the first Developer Preview of Android P was released, however, it was discovered that Google had changed something deep within Android’s core that stopped this rootless theming from working. It was unclear at the time if this was