anchor.diff:          _textTheme.body1,
           [new PlainTextSpan("${gridline.value}")]
         );
  -      gridline.labelPainter = new ParagraphPainter(text)
  +      gridline.labelPainter = new TextPainter(text)
           ..maxWidth = _rect.width
           ..layout();
         _horizontalGridlines.add(gridline);
  
positive.code:           _textTheme.body1,
            [new PlainTextSpan("${data.indicatorText}")]
          );
          _indicator.labelPainter = new ParagraphPainter(text)
            ..maxWidth = markerRect.width
            ..layout();
          _indicator.labelPosition = new Point(
  
negative.code: 
  class Gridline {
    double value;
    TextPainter labelPainter;
    Point labelPosition;
    Point start;
    Point end;
  