issue on previous date disable

[Ubaid-Javaid]

Hi! i am facing issue on previous date on JTAppleCalender
i use, func calendar(_ calendar: JTAppleCalendarView, shouldSelectDate date: Date, cell: JTAppleCell?, cellState: CellState) -> Bool {
return date >= Date()
}
. i want to this calender .

can you tell me how make this Like image . thanks.