Enable the beta Material Design for YouTube.
// ==UserScript==
// @name Youtube Material Beta
// @version 1.0.0
// @description Enable the beta Material Design for YouTube.
// @match http://*.youtube.com/*
// @match https://*.youtube.com/*
// @grant none
// @run-at document-start
// @namespace https://greasyfork.org/en/scripts/28312-youtube-material-beta
// ==/UserScript==
var loaded = function() {
document.cookie="PREF=f6=7;path=/;domain=.youtube.com";
};