Dark mode does not work on vivo v15 (FunTouch OS)

Android version 9.0

It's how I use it, and it works fine on iOS and some android devices, I've only noticed that it does not work on vivo v15 device

```
const scheme = useColorScheme();
return (
  <AppearanceProvider>
    <NavigationContainer theme={scheme === 'dark' ? DarkMode : LightMode}>
      <AppStack />
    </NavigationContainer>
  </AppearanceProvider>
);
```