youtube tapermonkey script - deface youtube on client to make it look like it's not youtube at all

youtube.deface.tapermonkey.js

// ==UserScript==
// @name         youtube deface
// @namespace    jQueryForChromeExample
// @include      http*://*youtube.com/*
// @match        https://www.youtube.com/*
// @author       Christian Noel Reyes
// @description  This userscript is meant to disfigure youtube using jQuery in a userscript on Google Chrome. (eg: https://dl.dropboxusercontent.com/u/617821/images/tapermonkey-youtube-disfigure-example.png)
// ==/UserScript==

// a function that loads jQuery and calls a callback function when jQuery has finished loading
function addJQuery(callback) {
  var script = document.createElement("script");
  script.setAttribute("src", "//ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js");
  script.addEventListener('load', function() {
    var script = document.createElement("script");
    script.textContent = "window.jQ=jQuery.noConflict(true);(" + callback.toString() + ")();";
    document.body.appendChild(script);
  }, false);
  document.body.appendChild(script);
}

// the guts of this userscript
function main() {
  // Note, jQ replaces $ to avoid conflicts.
  jQ("#masthead-positioner .yt-masthead-logo-container").remove();
  jQ("#masthead-positioner #yt-masthead-user").remove();
  jQ("#guide").remove();
  jQ("#page").css({
    "padding-left":0
  });
  jQ(".yt-ui-ellipsis").css({
    "background-color":"#0A1F2D",
    "border-radius":"5px",
    "padding":"3px"
  });
  jQ(".yt-badge").css({
    "border":"1px solid #0A1F2D",
    "background":"#167ac6"
  });
  jQ(".yt-card").css({
    "background":"#163144"
  });
  jQ("#content").css({
    "margin-left":0
  });
  jQ("#masthead-positioner #yt-masthead-container").css({
    "background":"transparent",
    "border-bottom":"none",
    "opacity":.5
  });
  jQ("#page-container").css({
    "padding-top":"46px"
  });
  jQ("#watch7-sidebar-contents").remove();
  jQ("#masthead-positioner-height-offset").remove();
  jQ("#watch7-container").remove();
  jQ("#footer-container").remove();
    jQ("body").css({
        background: 'url("https://dl.dropboxusercontent.com/u/617821/images/hq.walls/overloaded.jpg")'
    });
    
    jQ(".html5-player-chrome.html5-stop-propagation").css({
        background: '#0F314C'
    });
    
    jQ("#player").css({
        margin: 0
    });
    
    jQ(".ytp-play-progress").css({
        backgroundColor: "#0F314C"
    });
    
    jQ(".ad-container").css({
        display: "none"
    });
    
    jQ("[rel='shortcut icon']").attr("href", "https://dl.dropboxusercontent.com/u/617821/images/gnome-wat-icon.png");
    jQ("[rel='icon']").attr("href", "https://dl.dropboxusercontent.com/u/617821/images/gnome-wat-icon.png");
}

// load jQuery and execute the main function
addJQuery(main);