http://wccftech.com/rootless-system-wide-android-oreo-theme/ >"Screenshots showing Android Oreo Black Theme running on an unrooted Google Pixel on Android Oreo" | Source: XDA >For many users, Android is their first choice for a mobile operating system thanks to the endless customization possibilities. You can root it, you can install any skin that you want, you can have a custom launcher, change fonts, whatever the heck you want to do, you can pretty much do it (mostly thanks to the hard work of developers at the XDA). Now, Google’s latest Android 8.0 Oreo brings even more to the table.