ScheduleColors
class ScheduleColors(val gridLineColor: Color, val halfHourLineColor: Color, val hourLabelColor: Color, val headerContentColor: Color, val todayHeaderColor: Color, val nowIndicatorColor: Color, val defaultEventContainerColor: Color, val defaultEventContentColor: Color, val defaultEventAccentColor: Color)
Colors used by DaySchedule, WeekSchedule and the ScheduleDefaults slots.