Accessibility
DateRangeInput is one group. label names it. rangeLabels name the start and the end and are read before the group label. The trigger is a read-only text field with the formatted range (or the active mode's formatted end); it opens the calendar popover. Dates are chosen on the calendar, not typed in the trigger.calendarLabel. The popover uses calendarTitle, which is not painted. The default strip is a radiogroup named by modeSelectLabel, and the same name is on the combobox that leads the field. Reset and Apply use resetLabel and applyLabel. Apply is the only accent button.