Greasemonkey script to fix my background on Twitter

FixTwitterBG.js

// ==UserScript==
// @name         Set background back to what it should be
// @namespace    http://fearthecowboy.com
// @description  Changes twitter's new image-less background to something I can stand
// @include      https://twitter.com/*
// @grant        none
// @version      1.0
// ==/UserScript==

function addGlobalStyle(css) {
    var head, style;
    head = document.getElementsByTagName('head')[0];
    if (!head) { return; }
    style = document.createElement('style');
    style.type = 'text/css';
    style.innerHTML = css;
    head.appendChild(style);
}

// turns out my background image is at:
// background-image: url(https://pbs.twimg.com/profile_background_images/529661762623139841/zHIQPX3T.png);

addGlobalStyle('body { background-image: url(https://pbs.twimg.com/profile_background_images/529661762623139841/zHIQPX3T.png); }');
document.getElementById('page-outer').setAttribute("style", "background-image: url(https://pbs.twimg.com/profile_background_images/529661762623139841/zHIQPX3T.png);");