withHandleGeometry method
Replaces ChartSelectionBrushStyle.handleSize and ChartSelectionBrushStyle.handleHitSize together.
The parameters are assert-coupled, so they only move as a pair.
Implementation
ChartSelectionBrushStyle withHandleGeometry(
double handleSize,
double handleHitSize,
) => copyWith(handleSize: handleSize, handleHitSize: handleHitSize);