anchor.diff:      FOptWhichActivateOnClose: TATTabActionOnClose;
       FOptCaptionAlignment: TAlignment;
       FOptShowFlat: boolean;
  +    FOptShowFlatSep: boolean;
       FOptShowXButtons: TATTabShowClose; //show mode for "x" buttons
       FOptShowArrowsNear: boolean;
       FOptShowPlusTab: boolean; //show "plus" tab
  
positive.code:   _InitOptHotFontStyleUsed = false;
  
    _InitOptShowFlat = false;
    _InitOptPosition = atpTop;
    _InitOptFillWidth = true;
    _InitOptFillWidthLastToo = false;
  
negative.code:   C.FillRect(RectText);
    RectText:= Rect(ARect.Left+NIndentL, ARect.Top, ARect.Right-NIndentR, ARect.Bottom);
  
    if FOptShowFlat and FOptShowFlatSep then
    begin
      C.Pen.Color:= ColorBorderActive;
      i:= ARect.Left - FOptSpaceBetweenTabs div 2;
  