In the MIUI proprietary shell, which the Chinese company Xiaomi offers for its smartphones, there are a number of useful features hidden for ordinary average users.
Easy access to them allows the new third-party application MIUI Quick Settings. It can be downloaded for free from the Google Play app store.
According to the developer, the application provides an easy way to access the engineering mode in MIUI. For example, a user will be able to easily switch between networks, change the power mode, adjust the screen size and manage alerts, as well as start testing the hardware component and Android. There is support for a dark theme.
MIUI Quick Settings is only 2.9 MB in size and works with all smartphones with MIUI shell based on Android 5.1 Lollipop and higher. You can put it only at your own peril and risk, since the developer is not responsible for the result of changing system settings.