HomeAppsPersonalizationOnyx Substratum ThemeApps like Onyx Substratum Theme Here are some great alternatives to Onyx Substratum Theme by Archangel Apps : Transparent Pie/Oreo/Oxygen - ★4.2 BigBlu Substratum Theme ★4.8 RubiQ Substratum Theme ★4.3 RoundedUI Pie,Samsung,Oreo,Oxy ★4.6 Victory Substratum Theme +Oreo ★4.6 Pixel Theme - Substratum ★3.8 Alined Substratum Theme ★4.5 Iris - Substratum Theme ★4.8 [Substratum] Navbars ★3.9 Antares [Substratum] ★4.5 OREO XPERIA Theme™ | Xperia ★4.5 Livicons - Substratum Theme ★5.0 Aurora - Substratum Theme ★4.8 XPERIA ON™ | O Purple Theme ★4.2 XPERIA ON | O Cyan Theme ★4.7 Iris Monet (F) - Substratum ★4.8