fix-twitter.user.js

// ==UserScript==
// @name         Fix Twitter
// @namespace    https://gist.github.com/rcombs/
// @version      0.1
// @description  stop Twitter from being a piece of ѕһіt
// @author       Rodger Combs
// @match        https://twitter.com/*
// @grant        GM_addStyle
// @downloadURL  https://gist.github.com/rcombs/dd041d75357107ef7e2b26ba077a9612/raw/fix-twitter.user.js
// ==/UserScript==

(function() {
  'use strict';

/* jshint ignore:start */
  var CSSText = (<><![CDATA[
.avatar {
  border-radius: 5px !important;
}

.DashboardProfileCard-avatarImage, .ProfileCard-avatarImage {
  border-radius: 7px !important;
}

.size32 {
  border-radius: 4px !important;
}

div.RichEditor {
  border-radius: 3px !important;
}

.RichEditor div[contenteditable], .RichEditor div[contenteditable]:focus, .RichEditor div[contenteditable].fake-focus {
  padding: 8px !important;
}
]]></>).toString();
/* jshint ignore:end */

  GM_addStyle(CSSText);

  var subs = {
    'shit': 'ѕһіt',
    'SHIT': '𝖲𝖧𝖨𝖳',
    'fuck': 'fυсk',
    'FUCK': '𝖥𝖴𝖢𝖪',
    'asshole': 'aѕѕһοIе',
    'ASSHOLE': '𝖠𝖲𝖲𝖧𝖮𝖫𝖤',
  };

  function doFixup(el) {
    for (var sub in subs) {
      el.nodeValue = el.nodeValue.replace(new RegExp(sub, 'g'), subs[sub]);
    }
  }

  function recursivelyFixup(el) {
    if (el.nodeName == '#text')
      doFixup(el);

    for (var i = 0; i < el.childNodes.length; i++)
      recursivelyFixup(el.childNodes[i]);
  }

  document.body.addEventListener('blur', function (e) {
    if (e && e.target && e.target.isContentEditable) {
      console.error(e.target);
      recursivelyFixup(e.target);
    }
  }, true);
})();