I'm using the Nativescript Calendar on XML & JavaScript I follow Nativescript Documentation using eventTextColor but only ios can using

<calendar:CalendarMonthViewStyle.dayCellStyle>
    <calendar:DayCellStyle showEventsText="false" eventFontName="Times New Roman" eventTextColor="red" eventFontStyle="BoldItalic" eventTextSize="6" />
</calendar:CalendarMonthViewStyle.todayCellStyle>

or can I styling in JavaScript?