code: function (data) {
              var self = this;
  			 /* @const
  			 * @type {string}
  			 */
              self.className = "pencil";
              data = data || {};
              data.weight = 0.5;
              self.init(data);
          }
docs: *************************************************************
  Brushes.pencil
  @param {Object} [data] The data object is optional.
  @author Jim Schubert
  @description Returns a usable brush object for writing
  to HTML canvas element's context
  *************************************************************