anchor.diff:    /// size, ... of the text.
     /// Drawing text will retrieve through [labelResolver],
     /// you can override it with your custom data.
  -  VerticalLineLabel({
  -    EdgeInsets padding,
  -    TextStyle style,
  +  const VerticalLineLabel({
  +    EdgeInsets padding = const EdgeInsets.all(6),
  +    TextStyle style = const TextStyle(
  +      color: Colors.black,
  +      fontWeight: FontWeight.bold,
  +      fontSize: 14,
  +    ),
       Alignment alignment = Alignment.bottomRight,
       this.labelResolver = VerticalLineLabel.defaultLineLabelResolver,
     }) : super(padding: padding, style: style, alignment: alignment);
  
positive.code:   /// size, ... of the text.
    /// Drawing text will retrieve through [labelResolver],
    /// you can override it with your custom data.
    HorizontalLineLabel({
      EdgeInsets padding,
      TextStyle style,
      Alignment alignment = Alignment.topLeft,
      this.labelResolver = HorizontalLineLabel.defaultLineLabelResolver,
    }) : super(padding: padding, style: style, alignment: alignment);
  
negative.code:   /// Draws a title on the line, align it with [alignment] over the line,
    /// applies [padding] for spaces, and applies [style] for changing color,
    /// size, ... of the text.
    const FlLineLabel({this.padding, this.style, this.alignment});
  
  }
  
  