Dark tweetdeck that is not shitty blue.

darkdeck.user.js

// ==UserScript==
// @name         Darkdeck
// @namespace    http://tampermonkey.net/
// @version      0.1
// @description  Tweetdeck blue itself.
// @author       Yanrishatum
// @match        https://tweetdeck.twitter.com/
// @grant        none
// ==/UserScript==

(function() {
  'use strict';
  var s = document.createElement("link");
  s.rel = "stylesheet";
  s.href = "https://ton.twimg.com/tweetdeck-web/web/css/app-dark.fce7f535df.css";
  document.head.appendChild(s);
})();