mihon/app/src/main/res/menu/library_selection.xml

<?xml version="1.0" encoding="utf-8"?>

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

    <item android:id="@+id/action_edit_cover"
          android:title="@string/action_edit_cover"
          android:icon="@drawable/ic_create_white_24dp"
          app:showAsAction="ifRoom"/>

    <item android:id="@+id/action_move_to_category"
          android:title="@string/action_move_category"
          android:icon="@drawable/ic_label_white_24dp"
          app:showAsAction="ifRoom"/>

    <item android:id="@+id/action_delete"
          android:title="@string/action_delete"
          android:icon="@drawable/ic_delete_white_24dp"
          app:showAsAction="ifRoom"/>

</menu>