selectionWidthStyle property
Controls how wide the selection highlight boxes are computed to be.
See ui.BoxWidthStyle for details on available styles.
Implementation
ui.BoxWidthStyle get selectionWidthStyle => _selectionPainter.selectionWidthStyle;Implementation
set selectionWidthStyle(ui.BoxWidthStyle value) {
  _selectionPainter.selectionWidthStyle = value;
}