'default-toggle': {
      scope: {selectedIcon: '', icons: [{value: 'Gear', label: '> Gear'}, {value: 'Globe', label: '> Globe'}, {value: 'Heart', label: '> Heart'}, {value: 'Camera', label: '> Camera'}]},
      element: '<button type="button" class="btn" ng-model="selectedIcon" bs-options="icon.value as icon.label for icon in icons" data-toggle="true" bs-select></button>'
    },