Download ► DOWNLOAD (Mirror #1) Focus Substratum Theme (Android Oreo Nougat) V3.7 [Patched] Download full APK of BigBlu Substratum Theme v28.5 [Patched].. BigBlu is now working on Oreo and Nougat custom roms based on AOSP and CM/Lineage.. Please use the Big Blu Android System Overlay to get the… Continue reading Focus Substratum Theme (Android Oreo Nougat) V3.7 [Patched] __EXCLUSIVE__