salix/front/core/components/debug-info/index.html

<h6>Debug info</h6>
<ul>
    <li>
        {{$ctrl.env}}
    </li>
    <li>
        <span ng-class="{alert: $root.$$watchersCount > 500}">{{$root.$$watchersCount}}</span> watchers
    </li>
</ul>