anchor.diff:      fIdentifier: string;
       fTempFileName: string;
       fMultiDocSubject: TCECustomSubject;
  -    fStoredFontSize: Integer;
  +    fDefaultFontSize: Integer;
       fPositions: TCESynMemoPositions;
       fMousePos: TPoint;
       function getMouseStart: Integer;
  
positive.code: begin
    inherited;
    if (Button = mbMiddle) and (Shift = [ssCtrl]) then
      Font.Size := fStoredFontSize
    //TODO-cLCL&LAZ-specific: test this feature under gtk2/linux on next release, should work
    else if Button = mbExtra1 then
      fPositions.back
  
negative.code: begin
    inherited;
    SetDefaultKeystrokes; // not called in inherited if owner = nil !
    fDefaultFontSize := 10;
    Gutter.LineNumberPart.ShowOnlyLineNumbersMultiplesOf := 5;
    Gutter.LineNumberPart.MarkupInfo.Foreground := clGray;
    Gutter.SeparatorPart.LineOffset := 1;
  