salix/client/core/src/components/button/button.html

<button type="{{::$ctrl.type}}" class="mdl-button mdl-js-button mdl-button--raised mdl-button--colored" ng-click="$ctrl.onClick()">
    <span translate>{{$ctrl.label}}</span>
    <vn-icon 
        icon="{{::$ctrl.icon}}"
        class="{{::$ctrl.icon}}">
    </vn-icon>
</button>