Because this is Oreo and also Motorola's lightly touched version of Android, it appears that we’re getting the full Android 8.0 experience here. From Picture-in-Picture Mode, to Notificiation Dots from Google Pixel, there is a lot to take in. Additionally, Motorola has added several new features and enhacement from their side.
Recently a Moto X4 user on Reddit (u/wkrick) found that the new Moto Launcher now has a "Dark Theme" option which can be enabled from the Launcher settings. The Dark Theme mode on Moto Launcher basically turns the white background to dark.
As you can see in the below Image, after enabling the Dark Theme, folder background and app drawer turns dark. Stay tuned to our Facebook and Twitter page to get the first News.