vascript hljs">webgazer.addTrackerModule("newTracker", NewTrackerConstructor); //add a new tracker module</code></pre>
                        <p>Here are all the external tracker modules that come by default with WebGazer.js. Let us know if you want to introduce your own facial feature detection library. </p>
                        <ul>
                            <li><a href="https://github.com/auduno/clmtrackr">clmtrackr</a></li>
                            <li><a href="https://github.com/mtschirs/js-ob