listenToStyleFamily method
Implementation
void listenToStyleFamily(String appId, StyleFamily styleFamily) {
// todo: listen to the app, if the style changes, then re-listen to the style
_styleFamilySubscription[styleFamily.familyName]?.cancel();
_styleFamilySubscription[styleFamily.familyName] =
styleFamily.listenToStyles(appId, (list) {
add(ChangedStyleFamilyState(styleFamily, list));
});
}