message: Add 2 pixels before overview button
diff: @@ -10,7 +10,7 @@ static const int ToolButtonHeight = 54;
  static const int ToolButtonIconSize = 32;
  static const int MarginLeft = 6;
  static const int MarginRight = 3;
  -static const int MarginTop = 0;
  +static const int MarginTop = 2;
  static const int MarginBottom = 9;
  }
  using namespace NavigationBar_NS;
  