BringBackTheBlue - Tamper Monkey script to add the old link colors back to google. Probably overkill and no way efficient.

bringbackblue.js

// ==UserScript==
// @name         BringBackTheBlue
// @version      0.1
// @description  Blue it up
// @author       sprngr
// @match        https://www.google.com/*
// @grant        none
// ==/UserScript==

(function() {
    'use strict';

    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);
    }
    
    addGlobalStyle('a:link, .w, #prs a:visited, #prs a:active, .q:active, .q:visited, .kl:active, .tbotu {color: #1a0dab;}');
    addGlobalStyle('.mblink:visited, a:visited {color: #609;}');
})();