code: function OffPushDown(formObject) {
          var xobj = createFormXObject(formObject);
          var stream = [];
          stream.push("0.749023 g");
          stream.push("0 0 " + f2(AcroFormAppearance.internal.getWidth(formObject)) + " " + f2(AcroFormAppearance.internal.getHeight(formObject)) + " re");
          stream.push("f");
          xobj.stream = stream.join("\n");
          return xobj;
        }
docs: Returns the standard Off Appearance for a CheckBox
  
  @returns {AcroFormXObject}