How to change only the color of Text on a special day (Sunday)

[ParkJongJoon7128]

I am developing Android layout using jetpack compose and kotlin. I'm developing a calendar view using the Kalendar library, and I'd like to color in Text only on certain days of the week, Sunday, and all other dates in black. I implemented the code as I wanted, but when I modified the code and ran the app, Kalendar's Text was all black, and I had a problem that when I clicked on a Sunday date, all the Text colors on the calendar turned red. How do I modify the code as I want?

This is code on My Project of Part:

                   val selectedDate = LocalDate.of(
                            year.toInt(), month.toInt(), day.toInt()
                        )
                        val dayOfWeek = selectedDate.dayOfWeek

                   val dayColor: Color = when (dayOfWeek.value) {
                                   6 -> Color.Blue
                                   7 -> Color(0xFFF86B6B)
                                   else -> Color.Black }

                   Kalendar(
                    currentDay = null,
                    kalendarType = KalendarType.Firey,
                    kalendarHeaderTextKonfig = KalendarTextKonfig(
                        kalendarTextColor = Color.Black, kalendarTextSize = 22.sp
                    ),
                    kalendarColors = KalendarColors(color = List(12) {
                        KalendarColor(
                            backgroundColor = Color.White,
                            dayBackgroundColor = Color(0xFFFFDAB9),
                            headerTextColor = Color.Black
                        )
                    }),
                    kalendarDayKonfig = KalendarDayKonfig(
                        size = 56.dp,
                        textSize = 14.sp,
                        textColor = dayColor,
                        selectedTextColor = dayColor,
                        borderColor = Color.Transparent
                    ),
                    daySelectionMode = DaySelectionMode.Single,
                    onDayClick = { localDate: kotlinx.datetime.LocalDate, kalendarEvents: List<KalendarEvent> ->
                        year = localDate.year.toString()
                        month = localDate.monthNumber.toString()
                        day = localDate.dayOfMonth.toString()

                        val selectedDate = LocalDate.of(
                            localDate.year, localDate.monthNumber, localDate.dayOfMonth
                        )
                        val dayOfWeek = selectedDate.dayOfWeek

                        dayString = when (dayOfWeek.value) {
                            1 -> "월요일"
                            2 -> "화요일"
                            3 -> "수요일"
                            4 -> "목요일"
                            5 -> "금요일"
                            6 -> "토요일"
                            7 -> "일요일"
                            else -> ""
                        }
                        scope.launch {
                            readTodo(token, year, month, day) {
                                todoList.clear()
                                for (i in it!!.data) {
                                    todoList.add(i)
                                }
                            }
                        }
                    },
                    headerContent = { month, year ->
                        Row(
                            modifier = Modifier.padding(start = 20.dp, bottom = 16.dp),
                            verticalAlignment = Alignment.CenterVertically,
                            horizontalArrangement = Arrangement.Start
                        ) {
                            Image(
                                modifier = Modifier.size(22.dp), painter = painterResource(
                                    id = R.drawable.headertextemogi
                                ), contentDescription = null
                            )

                            Spacer(modifier = Modifier.width(4.dp))

                            Text(
                                text = if (month.number.toString().length < 2) {
                                    "${year}. 0${month.number}"
                                } else {
                                    "${year}. ${month.number}"
                                },
                                fontSize = 22.sp,
                                lineHeight = 28.6.sp,
                                fontWeight = FontWeight(700),
                                color = Color(0xFF000000)
                            )
                        }
                    },
                    showLabel = true
                )