I am new to Flutter. I am using DatePickerTimeline package (https://pub.dev/packages/date_picker_timeline) . I want to change theme of my DatePicker widget. In first picture you will see what I achieved. But I want my custom design like adding color to border to boxes.
This is the first picture
In the second picture you will see what I want to do. And I would like to ask can I make half box like in second picture
Second picture