anchor.diff:  
     end;
   
  - TAgg2D = class
  + TAgg2D = class(TfpgCanvasBase)
     private
      m_rbuf : rendering_buffer;
      m_pixf : TPixelFormat;
  
positive.code:    m_ifBlackman144 : image_filter_blackman144;
  
    public
     constructor Create;
     destructor  Destroy; override;
  
    // Vector Graphics Engine Initialization
  
negative.code: end;
  
  { CREATE }
  constructor TAgg2D.Create(awin: TfpgWindowBase);
  begin
    inherited Create(awin);
  
    FLineWidth := 1;
   m_rbuf.Construct;
  
   m_pixf:=pf32bit;
  