silverstripe-userforms/code/Model/EditableFormField/EditableDateField/FormField.php

<?php

namespace SilverStripe\UserForms\Model\EditableFormField\EditableDateField;

use SilverStripe\Forms\DateField;

/**
  * @package userforms
 */
class FormField extends DateField
{
    public function Type()
    {
        return "date-alt text";
    }
}