dandelion/app/src/main/res/menu/main__menu_top.xml

<menu xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    tools:context=".activity.MainActivity">

    <item
        android:id="@+id/action_notifications"
        android:icon="@drawable/ic_notifications_white_48px__layer"
        app:showAsAction="always"
        android:orderInCategory="100"
        android:title="@string/notifications"
        />

    <item
        android:id="@+id/action_conversations"
        android:icon="@drawable/ic_mail_white_48px__layer"
        app:showAsAction="always"
        android:orderInCategory="200"
        android:title="@string/conversations" />

</menu>