How to use custom icon in jquery-ui 1.12 checkboxradio widget?

In jquery-ui 1.11 i could change the text with an icon using the "icons" option. That option have been depricated in v. 1.12 and replaced with "icon". But it seems that it's only possible to either use the default icon or not?

Maybe i should use another widget for this?

Fiddle

  <fieldset>
    <legend>Select a Location: </legend>
    <label for="radio-1">New York</label>
    <input type="radio" name="radio-1" id="radio-1">
    <label for="radio-2">Paris</label>
    <input type="radio" name="radio-1" id="radio-2">
  </fieldset>

  $( function() {
    $( "#radio-1" ).checkboxradio( { icon: false} );
    $( "#radio-2" ).checkboxradio( { icon: false} );
  } );