Session storage is used to store and retrieve widgelet specific information in RoamAbout. It can be used to share information across instances of the widgelet (one for each tab) in the same browser session or to make the information persistence across browser sessions. It has two API methods namely setAttribute() and getAttribute().

       var dinfo = {
        visible:true,
        iconIndex: 0,
        tooltip: "tooltiptext"
        };