anchor.diff:      property EndTime: Single read _EndTime write _EndTime;
       property TimeScale: Single read _TimeScale write _TimeScale;
       property Mix: Single read _Mix write _Mix;
  +    property MixTime: Single read _MixTime write _MixTime;
  +    property MixDuration: Single read _MixDuration write _MixDuration;
       property Loop: Boolean read _Loop write _Loop;
       property OnStart: TSpineAnimationStateStartEnd read _OnStart write _OnStart;
       property OnEnd: TSpineAnimationStateStartEnd read _OnEnd write _OnEnd;
  
positive.code:     constructor Create;
    end;
  
    TSpineAnimation = class (TSpineClass)
    end;
  
    TSpineAnimationStateStartEnd = procedure (const State: TSpineAnimationState; const TrackIndex; Integer) of Object;
  
negative.code:     var _Attachment: TSpineAttachment;
      var _AttachmentTime: Single;
      var _AttachmentVertices: TSpineFloatArray;
      var _AttachmentVertexCount: Integer;
      procedure SetAttachment(const Value: TSpineAttachment); inline;
      function GetAttachmentTime: Single; inline;
      procedure SetAttachmentTime(const Value: Single); inline;
  