Picker is ALWAYS getting system theme (at least in Windows)

[daaanigm]

Problem: Testing this component in "react-native-windows" we can not customise it. It always gets the theme colors from system and we can not customise it idependently.

Expected Picker component should have a property to disable "systemTheme" and give us the possibility to customise the component independently from the system theme.

IDK if there is a way to override system theme, is there?

Thanks in advance.

[WilliamWelsh]

Same issue here, I want to be able to force dark mode on Windows. Related issue #528, themeVariant is in the README but not working