walnut_launchpad.html/templates/widgets/notification-widget.html

<div class="alert alert-success" role="alert">{{ vm.notificationMessage }}</div>
<div class="alert alert-info" role="alert">{{ vm.notificationMessage }}</div>
<div class="alert alert-warning" role="alert">{{ vm.notificationMessage }}</div>
<div class="alert alert-danger" role="alert">{{ vm.notificationMessage }}</div>