paintChildren.dart

void paintChildren(FlowPaintingContext context) {
    double dy = 0.0;
    for (int i = 0; i < context.childCount; ++i) {
      dy = context.getChildSize(i).height * i;
      context.paintChild(
        i,
        transform: Matrix4.translationValues(
          0,
          dy * 0.1,
          0,
        ),
      );
    }
  }