Use Substratum to Install a Custom Theme Without Root on Android Oreo
Edited by Jay, Maria
It's no surprise around here that we're fans of Android Oreo in regards to its customization potential. We've covered using ADB with Windows, as well as how to customize Battery Saver Mode. In older versions of Android, most serious tweaking could only be accomplished on devices with root access. Things like changing the theme, for example, were just not possible on rootless phones or tablets. But, since the release of the Substratum Add-on Andromeda, Oreo users have some of the capabilities that were once reserved for rooted devices.
In our step-by-step tutorial on installing custom themes, we go over setting up both the Substratum and Andromeda Add-on apps, in addition to getting them up and running on a Windows PC (with links provided for Mac and Linux). For those of you who don't yet have these two apps installed and working correctly, please check out our comprehensive guide here.
The purpose of this VisiHow how-to, however, is to showcase the Substratum theme engine and Andromeda rootless add-on in action. We're going to grab a custom theme from the Play Store and walk through the steps on how to apply it to your device. For this tutorial, we installed the free theme called BalticUI for Substratum, on a Google Pixel running Android 8.1.0.
**Please Note** BalticUI for Substratum is a free theme. You don't have to use this one to follow along with this article. There are other free and paid custom themes available that will work also. Just be sure when you search the Play Store to include the keyword "Substratum" or "OMS". Themes that mention the terms "Legacy" or "RMO" will not work correctly with your device.
Download a Custom Theme for Android Oreo
Please remember that you do not have to use the following theme. You can choose any theme you wish as long as it meets the criteria mentioned above. We selected this theme for this tutorial because it is free and works well for demonstration purposes.
Installing Custom Themes on Android Oreo with Substratum
Uninstall Themes on Android Oreo
Once the theme is uninstalled or disabled, you'll be taken back to Substratum's main screen.