Limegreen external links

Highlight all external links in lime green, works on dynamically added content too.

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Userscripts to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install a user script manager extension to install this script.

(I already have a user script manager, let me install it!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!)

// ==UserScript==
// @name         Limegreen external links
// @description  Highlight all external links in lime green, works on dynamically added content too.
// @include      *
// @namespace    wOxxOm.scripts
// @author       wOxxOm
// @version      1.0.2
// @license      MIT License
// @grant        GM_addStyle
// @run-at       document-start
// @require      https://greasyfork.org/scripts/12228/code/setMutationHandler.js
// ==/UserScript==

GM_addStyle(
	'a.external_link_wOxxOm:link {background-color: rgba(133,255,0,0.7) !important; color:black!important}'+
	'a.external_link_wOxxOm:visited {background-color: rgba(191,255,0,0.7) !important; color:black!important}'
);
setMutationHandler(document, 'a[href*="//"]', function(nodes) {
	var hostname = new URL(location.href).hostname;
	nodes.forEach(function(n) {
		if (new URL(n.href).hostname != hostname)
			n.classList.add('external_link_wOxxOm');
	});
	return true;
});