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_bell_outline_white_24dp"
        android:title="@string/notifications"
        app:showAsAction="always" />

    <item
        android:id="@+id/action_conversations"
        android:icon="@drawable/ic_message_text_outline_white_24dp"
        android:title="@string/conversations"
        app:showAsAction="always" />

</menu>