code: function createDefaultAppearanceStream(formObject) {
        // Set Helvetica to Standard Font (size: auto)
        // Color: Black
        var fontKey = scope.internal.getFont(formObject.fontName, formObject.fontStyle).id;
  
        var encodedColor = scope.__private__.encodeColorString(formObject.color);
  
        var fontSize = formObject.fontSize;
        var result = '/' + fontKey + ' ' + fontSize + ' Tf ' + encodedColor;
        return result;
      }
docs: Returns the standard Appearance
  
  @returns {AcroFormXObject}