Reference TEdgeOffset

  TEdgeOffset = class(TChangeNotifier)
  public
    { Copy padding }
    procedure Assign(Source: TPersistent); override;
  published
    { Space on the left }
    property Left: Integer read FLeft write SetLeft default 0;
    { Space on the top }
    property Top: Integer read FTop write SetTop default 0;
    { Space on the right }
    property Right: Integer read FRight write SetRight default 0;
    { Space on the bottom }
    property Bottom: Integer read FBottom write SetBottom default 0;
  end;