no textstyle option for showMaterialCheckboxPicker

[rawquesh]

I really like your package but I can't change the text style for the header and checkbox name, let me know if you have something, thanks.

showMaterialCheckboxPicker(
  context: context,
  title: "Select",
  items: currentOffDays,
  selectedItems: selectedCurrentOffdays,
  backgroundColor: Colors.white,
  headerColor: THEME_COLOR,
  onChanged: (value) async {
);