anchor.diff:    /// [srcOver]. Regions that are entirely transparent in the source image take
     /// their saturation from the destination.
     ///
  -  /// ![](https://flutter.github.io/assets-for-api-docs/dart-ui/blend_mode_hue.png)
  +  /// ![](https://flutter.github.io/assets-for-api-docs/assets/dart-ui/blend_mode_hue.png)
     ///
     /// See also:
     ///
  
positive.code:   ///
    /// The effect is similar to [exclusion] but harsher.
    ///
    /// ![](https://flutter.github.io/assets-for-api-docs/dart-ui/blend_mode_difference.png)
    difference,
  
    /// Subtract double the product of the two images from the sum of the two
  
negative.code:   /// The opacity of the output image is computed in the same way as for
    /// [srcOver].
    ///
    /// ![](https://flutter.github.io/assets-for-api-docs/assets/dart-ui/blend_mode_lighten.png)
    lighten,
  
    /// Divide the destination by the inverse of the source.
  