mapDarkModeChanges

Emits whether the Android Auto map is drawn dark (isMapDark): the current value on collection, then each time it changes — when the car switches between day and night under AADayNightMode.AUTO, or when the user changes dayNightMode.

A change that leaves the map as it is emits nothing: the car switching mode under a forced AADayNightMode.DAY or AADayNightMode.NIGHT, or a choice that resolves to the mode already shown.