According to foreign media AndroidPolice report, in the latest Android P fourth developer preview, Google fulfilled its promise and further updated this black theme.
After the update, the theme will still change according to the depth of the wallpaper, but you can finally switch manually, the user can switch to the Settings-Display-Advanced-Device theme, choose the white theme or the black theme, or let the system automatically switch between black and white. theme.
This black theme is not the mysterious Android night mode, the night mode is still in the developer options, I believe this black theme should enter the official version of Android P.