BorderSide
Customizes the appearance of Dividers, VerticalDivider,
dividers between tiles (ExpansionTiles or ListTiles),
and dividers between rows in DataTable across the app.
DividerTheme class has the following properties:
color
Overrides the default value of Divider.color in all descendant Divider controls.
leading_indent
Overrides the default value of Divider.leading_indent in all descendant Divider controls.
space
Overrides the default value of Divider.space in all descendant Divider controls.
thickness
Overrides the default value of Divider.thickness in all descendant Divider controls.
trailing_indent
Overrides the default value of Divider.trailing_indent in all descendant Divider controls.