Raw Source
an0nybruh / ngu custom 

// ==UserScript==
// @name      ngu custom
// @namespace  
// @version      1.0
// @description   Dark theme for NextGenUpdate
// @include      http://nextgenupdate.com/forums/*
// @include      http://www.nextgenupdate.com/forums/*
// @exclude     http://www.nextgenupdate.com/forums/shoutbox-iframe.php
// @copyright     2014-2015 an0ny
// @author      An0ny
// @run-at      document-start
// ==/UserScript==

var link = window.document.createElement('link');
link.rel = 'stylesheet';
link.type = 'text/css';
link.href = 'http://sendpsn.com/ngu/alt.css';
document.getElementsByTagName("HEAD")[0].appendChild(link);