theme config menu file

interface/web/admin/lib/interface.d/default-v2.menu.php

+<?php
+
+$items[] = array(   'title'     => 'Default-v2 Theme',
+                    'target' 	=> 'content',
+                    'link'	=> 'admin/default-v2_settings.php',
+                    'html_id'   => 'default-v2_settings');
+?>