Infinity-For-Lemmy/app/src/main/res/menu/customize_theme_activity.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_preview_customize_theme_activity"
        android:orderInCategory="1"
        android:title="@string/action_preview"
        android:icon="@drawable/ic_preview_24dp"
        app:showAsAction="ifRoom" />

    <item
        android:id="@+id/action_save_customize_theme_activity"
        android:orderInCategory="2"
        android:title="@string/action_save"
        android:icon="@drawable/ic_check_circle_toolbar_24dp"
        app:showAsAction="ifRoom" />
</menu>