Highlight selected date when click on the month view cell

[jawadincode]

I want to update selected date color to a custom color but could't found any property like selected date.
Is it possible to highlight the date when I click on any cell ?

Code :

MonthView(
controller: calendarController.eventController,
cellAspectRatio: 1.2,
width: 345.w,
initialMonth: DateTime.now(),
minMonth: DateTime.now(),
maxMonth: DateTime.now().add(const Duration(days: 365)),
showBorder: false,
headerStyle: const HeaderStyle(
decoration: BoxDecoration(
color: AppColor.transparent,
),
),
cellBuilder: (date, event, isToday, isInMonth) {
return Container(
decoration: BoxDecoration(
color: isToday ? AppColor.primaryColor : AppColor.transparent,
borderRadius: BorderRadius.circular(10.r),
),
child: Center(
child: Text(
date.day.toString(),
style: TextStyle(
color: isToday ? Colors.white : Colors.black,
fontWeight: FontWeight.bold,
),
),
),
);
},
weekDayBuilder: (day) => SizedBox(
height: 20.h,
child: Center(
child: Text(
calendarController.days[day],
style: const TextStyle(
color: Colors.black,
fontWeight: FontWeight.bold,
),
),
),
),
headerStringBuilder: (date, {secondaryDate}) {
return '${calendarController.months[date.month - 1]} ${date.year}';
},
headerBuilder: (date) => SizedBox(
height: 50.h,
child: Container(
decoration: const BoxDecoration(
color: AppColor.transparent,
),
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
IconButton(
onPressed: () {},
icon: const Icon(
Icons.arrow_back_ios,
color: Colors.black,
),
),
Text(
'${calendarController.months[date.month - 1]} ${date.year}',
style: const TextStyle(
color: Colors.black,
fontWeight: FontWeight.bold,
),
),
IconButton(
onPressed: () {},
icon: const Icon(
Icons.arrow_forward_ios,
color: Colors.black,
),
),
],
),
),
),
onCellTap: (events, date) {},
)