anchor.diff: -// @dart=2.11
  +
   import 'dart:math';
   import 'dart:typed_data';
   
  
positive.code:   /// How long this frame should be displayed, in milliseconds.
    /// A duration of 0 indicates no delay and the next frame will be drawn
    /// as quickly as it can.
    int duration = 0;
  
    /// Defines what should be done to the canvas when drawing this frame
    /// in an animation.
  
negative.code:   /// var image = Image.fromBytes(canvas.width, canvas.height, bytes,
    ///                             format: Format.rgba);
    Image.fromBytes(int width, int height, List<int> bytes,
        {ExifData? exif,
        ICCProfileData? iccp,
        Format format = Format.rgba,
        this.channels = Channels.rgba})
        : width = width,
  