Android Oreo gains support for custom themes via Andromeda add-on for Substratum, no root needed

A while ago, we reported that custom themes may be coming to Android 8.0 Oreo without the need for rooting your device. We are happy to report back that this seems to be the case, although the ability to do so is not quite "native", in that it requires a third-party app and a PC connection.

Last month, the folks over at XDA discovered, while tinkering with preview builds of Oreo, that the new version of Android has support for Sony's Runtime Resource Overlay (RRO) theme engine baked-in. This spurned the developers behind the popular custom theming engine Substratum to begin work on bringing their framework—which is otherwise limited to custom Android ROMs—to all devices running Oreo. This means that all users running Oreo on their phones, including ones running unofficial ports of the OS, can enjoy the benefits of custom themes on their devices.

The Substratum Android app is currently up on Google Play for free, while the Andromeda backend add-on is up for the low price of $2.49. Custom themes can be found a plenty on Google Play by searching for "Substratum."

To learn more about the process of installing custom themes on your device, head over to the XDA forum thread linked below.


Substratum Theme Engine  |  Andromeda add-on

source: XDA



1. Jesseclark

Posts: 28; Member since: Jun 10, 2017

Already enjoying millions of themes via Samsung theme store since S6 edge time.

7. nodes

Posts: 1164; Member since: Mar 06, 2014

Substratum is a different beast.

11. Finalflash

Posts: 4063; Member since: Jul 23, 2013

Actually it operates about the same as the Samsung theme engine. The Sungstratum App from the Substratum team works on the Nougat and higher to bring Substratum themes to Samsung phones.

9. RebelwithoutaClue unregistered

While the Samsung theme engine is nice, it's not even close to substratum. Samsung's theme engine can only theme the Samsung Experience (Touchwiz) and some Samsung apps. Substratum (depending on the theme developer) can theme a s**tload of apps (most Google apps, Whatsapp, Adaway, Nova, etc)

3. AronWunarso

Posts: 245; Member since: Feb 21, 2016

I just notice something different on PA. Now, you can see the writer profile picture beside its name!

5. peter.k

Posts: 78; Member since: Jul 05, 2017

Yes, time to hold a beauty pageant in the office!

10. RebelwithoutaClue unregistered

The most beautiful nerd of Phonearena... let us know who won ;)

4. abdoualgeria

Posts: 928; Member since: Jul 27, 2015

This is X-rated for iOS fanatics ;)

6. joey_sfb

Posts: 6794; Member since: Mar 29, 2012

I currently happy with Google wallpaper app. You could set it to change your wallpaper on a daily basis to avoid boredom.

8. Rocket

Posts: 731; Member since: Feb 24, 2014

After cyanogenmod dead, this is good news :)

Latest Stories

This copy is for your personal, non-commercial use only. You can order presentation-ready copies for distribution to your colleagues, clients or customers at or use the Reprints & Permissions tool that appears at the bottom of each web page. Visit for samples and additional information.
FCC OKs Cingular's purchase of AT&T Wireless