Compatible with Substratum engine only! If you are not familiar with it, please do not download. Flux White theme for Substratum theme engine is designed with pixel perfect graphics and material ui, to give your phone a new vibrant and light look! Flux Dark is available ️ Works with. Android Nougat/Oreo/Pie/10 stock and custom roms. OxygenOS Pie/10/11. Samsung Oreo/Pie/10.