https://www.miuithemez.com/2019/10/mioppo-miui-10-theme-best-color-os-dark-theme.html
MiOppo MIUI 10 Theme | Best Color OS Dark Theme for Xiaomi
Download Mioppo (Color OS) MIUI 10 Theme. It is the best Color OS Theme for MIUI Users with complete Dark Layout.
best colormiuithemeosdark