todayBorder property
final
Overrides the border used to paint the DatePickerDialog.currentDate label in the grid of the date picker.
If the border side's BorderSide.color is transparent (has 0 opacity), todayForegroundColor is used instead. Otherwise, the border's color is used as specified. To omit the border entirely, set todayBorder to BorderSide.none.
This sample demonstrates how to customize the day selector shape decoration
using the dayShape, todayForegroundColor, todayBackgroundColor, and
todayBorder properties.
link
To create a local project with this code sample, run:
flutter create --sample=material.DatePickerThemeData.todayBorder.1 mysample
Implementation
final BorderSide? todayBorder;