Outlook Icon Replace

Outlook Icon Replace.user.js

// ==UserScript==
// @name         Outlook Icon Replace
// @version      0.1
// @description  Replace the new outlook icon with the old one
// @author       kleftotronic
// @date         10/09/2016
// @match        *://outlook.live.com/*
// @namespace    https://klef.ca/gmscripts
// @require      https://code.jquery.com/jquery-latest.js
// @grant        none
// @run-at       document-end
// @compatibility  Chrome
// @noframes
// ==/UserScript==

var $ = jQuery;

function hidePremiumButton()
{
	$("div:contains('Upgrade to Premium')").last().hide();
}

function replaceIcons()
{
	'use strict';
	
	$('#O365_MainLink_NavMenu > .owaimg').removeClass('ms-Icon--waffle2 ms-icon-font-size-20').addClass('ms-Icon--outlook ms-icon-font-size-30');
	$('.ms-bg-color-themeLighterAlt[role="toolbar"] .owaimg:first').removeClass('ms-icon-font-size-16-circle').addClass('ms-icon-font-size-20-circle');
}

var x = new MutationObserver(function (mutations) {
	mutations.forEach(function(mutation)
	{
		if (mutation.removedNodes.length > 0) 
		{
			mutation.removedNodes.forEach(function(node) {
				if (node.id == 'owaLoading')
				{
					replaceIcons();
					hidePremiumButton();
					x.disconnect();
				}
			});
		}
	});   
});

if ($('#owaLoading'))
{
	x.observe($('body').get(0), { childList : true });
}