anchor.diff:    /// Determines color of the spot.
     Color color;
   
  +  /// Determines label of the spot.
  +  final String? label;
  +
     /// You can change [show] value to show or hide the spot,
     /// [x], and [y] defines the location of spot in the [ScatterChart],
     /// [radius] defines the size of spot, and [color] defines the color of it.
  -  ScatterSpot(
  -    double x,
  -    double y, {
  -    bool? show,
  -    double? radius,
  -    Color? color,
  -  })  : show = show ?? true,
  +  ScatterSpot(double x, double y,
  +      {bool? show, double? radius, Color? color, String? label})
  +      : show = show ?? true,
           radius = radius ?? 6,
           color = color ??
               Colors.primaries[((x * y) % Colors.primaries.length).toInt()],
  +        label = label,
           super(x, y);
   
     @override
  
positive.code:         show,
          radius,
          color,
        ];
  }
  
  
negative.code:       show: show ?? this.show,
        radius: radius ?? this.radius,
        color: color ?? this.color,
        label: label,
      );
    }
  
  