better-hackernews.user.js

// ==UserScript==
// @name         Hacker News UI
// @description  Better Hacker News UI
// @namespace    https://gist.github.com/selcuk
// @version      0.3
// @match        https://news.ycombinator.com/*
// @icon         https://news.ycombinator.com/favicon.ico
// @grant        GM_addStyle
// @run-at       document-start
// ==/UserScript==

(function () {
    'use strict';

    // Improve style
    GM_addStyle('* { font-size: 18px !important; font-family: Arial, Helvetica, sans-serif; }');
    GM_addStyle('code { font-family: Courier, monospace; }');
    GM_addStyle('table#hnmain { background-color: white; max-width: 800px; }');
    GM_addStyle('table#hnmain > tbody > tr > td { background-color: white; }');
    GM_addStyle('.athing > td { border-top: 1px dashed #cccccc; padding: 8px 0; }');


    window.addEventListener('load', function () {
        // Append archive.today link
        let titleSpan = document.querySelector(".titleline");
        let articleUrl = titleSpan.querySelector("a").href;
        titleSpan.innerHTML += ' [<a href="https://archive.is/newest/' + articleUrl + '" style="text-decoration: underline;">archive.today</a>]';

        // Remove favicon (because why not?)
        var favicon = document.querySelector('link[rel~="icon"]');
        var clone = favicon.cloneNode(!0);
        clone.href = "data:image/jpeg;base64,";
        favicon.parentNode.removeChild(favicon);
        document.head.appendChild(clone);
    }, false);
})();