Widget _buildCapsuleDoubleHandleWithNumber(BuildContext context) { return TDRangeSlider( sliderThemeData: TDSliderThemeData.capsule( showThumbValue: true, min: 0, max: 100, scaleFormatter: (value) => value.toInt().toString(), ), leftLabel: '0', rightLabel: '100', value: const RangeValues(20, 60), onChanged: (value) {}, ); }