code: function (data, id) {
              if (!data || !this.projectPath) {
                  return;
              }
  
              if (data[this.projectPath] && (data[this.projectPath][id] !== undefined)) {
                  return data[this.projectPath][id];
              }
              return;
          }
docs: Retrieve the current value based on the current project path
  in the layer.
  
  @param {Object} data the preference data from the Scope
  @param {string} id preference ID to look up