anchor.diff:    Picture(); // (this constructor is here just so we can document it)
   
     /// Creates an image from this picture.
  -  /// 
  +  ///
     /// The picture is rasterized using the number of pixels specified by the
     /// given width and height.
  -  /// 
  +  ///
     /// Although the image is returned synchronously, the picture is actually
     /// rasterized the first time the image is drawn and then cached.
     Image toImage(int width, int height) native "Picture_toImage";
  
positive.code: 
  /// Defines how a list of points is interpreted when drawing a set of points.
  ///
  /// Used by [Canvas.drawPoints].
  enum PointMode {
    /// Draw each point separately.
  
negative.code:   /// Draws a sequence of points according to the given [PointMode].
    ///
    /// The `points` argument is interpreted as offsets from the origin.
    @Deprecated('We are planning on changing the signature of this function. See <https://github.com/flutter/flutter/issues/10087>.')
    void drawPoints(PointMode pointMode, List<Offset> points, Paint paint) {
      _drawPoints(paint._objects, paint._data, pointMode.index, _encodePointList(points));
    }
  