node-red/test/resources/plugin/test-plugin/library-filestore.html

<script type="text/javascript">
    RED.plugins.registerPlugin("node-red-library-filestore", {
        type: "node-red-library-source",
        name: "Local File-System Library",
        icon: "font-awesome/fa-hdd-o",
        defaults: {
            name: { value: "" },
            path: { value: ""}
        }
    })
</script>