Facebook STOP! console code

gistfile1.js

__d("Chromedome", ["fbt"], function(a, b, c, d, e, f, g) {
    f.start = function(h) {
        if (h.off || top !== window ||!/(^|\.)facebook\.com$/.test(document.domain))
            return;
        var i = h.stop || "Stop!", j = h.text || "This is a browser feature intended for developers. If someone told you to copy-paste something here to enable a Facebook feature or \"hack\" someone's account, it is a scam and will give them access to your Facebook account.", k = h.more || g._("For more information, see {url}.", [g.param("url", 'https://www.facebook.com/selfxss')]);
        if ((window.chrome || window.safari)&&!h.textonly) {
            var l = 'font-family:helvetica; font-size:20px; ';
            [[i, h.c1 || l + 'font-size:50px; font-weight:bold; ' + 'color:red; -webkit-text-stroke:1px black;'], [j, h.c2 || l], [k, h.c3 || l], ['', '']].map(function(r) {
                setTimeout(console.log.bind(console, '\n%c' + r[0], r[1]));
            });
        } else {
            var m = ['', ' .d8888b.  888                       888', 'd88P  Y88b 888                       888', 'Y88b.      888                       888', ' "Y888b.   888888  .d88b.  88888b.   888', '    "Y88b. 888    d88""88b 888 "88b  888', '      "888 888    888  888 888  888  Y8P', 'Y88b  d88P Y88b.  Y88..88P 888 d88P', ' "Y8888P"   "Y888  "Y88P"  88888P"   888', '                           888', '                           888', '                           888'], n = ('' + j).match(/.{35}.+?\s+|.+$/g), o = Math.floor(Math.max(0, (m.length - n.length) / 2));
            for (var p = 0; p < m.length || p < n.length; p++) {
                var q = m[p];
                m[p] = q + new Array(45 - q.length).join(' ') + (n[p - o] || '');
            }
            console.log('\n\n\n' + m.join('\n') + '\n\n' + k + '\n');
            return;
        }
    };
}, null);

Got an example of this running?

Update: Got a good version working in my JS fiddle

So basically this:

console.log("%cGood to go!", "font: 2em roboto; color: yellow; background-color: green;");