             tintColor = color;
             optionCalendarFontColorMonth = UIColor.black
             optionCalendarFontColorDays = UIColor.black
+            optionCalendarFontColorDisabledDays = UIColor.lightGray
             optionCalendarFontColorToday = UIColor.darkGray
             optionCalendarFontColorTodayHighlight = UIColor.white
             optionCalendarBackgroundColorTodayHighlight = tintColor

    /// Selector will show the earliest selected date's month by default.
    open var optionCurrentDateRange: WWCalendarTimeSelectorDateRange = WWCalendarTimeSelectorDateRange()
    
    /// Set the background blur effect, where background is a `UIVisualEffectView`. Available options are as `UIBlurEffectStyle`:
    ///
    /// `Dark`

                    var fontColor = dateFutureFontColor
                    var fontHighlightColor = dateFutureHighlightFontColor
                    var backgroundHighlightColor = dateFutureHighlightBackgroundColor.cgColor
                    if !delegate.WWCalendarRowDateIsEnable(date) {
                        font = dateDisableFont
                        fontColor = dateDisableFontColor
                    }
                    else if date == today {
                        font = comparisonDates.contains(date) ? dateTodayFontHighlight : dateTodayFont
                        fontColor = dateTodayFontColor
                        fontHighlightColor = dateTodayHighlightFontColor
