I think its happening due to https://github.com/wix/react-native-calendars/blob/32a5eed2463aad79b7373db4585db0452aa8e18b/src/calendar-list/new.tsx#L51, where headerProps are calculated based on `props` - but it should be `calendarProps` as now everything in calendarProps is overriden by headerProps in https://github.com/wix/react-native-calendars/blob/32a5eed2463aad79b7373db4585db0452aa8e18b/src/calendar-list/new.tsx#L181