Sets StackOverflow, SuperUser, and other StackExchange based sites to always use your system theme
// ==UserScript==
// @name StackSuite System Theme
// @author brian6932
// @namespace https://greasyfork.org/users/581142
// @namespace https://github.com/brian6932
// @include /^https:\/{2}(?:[^.]+\.stackexchange|s(?:tackoverflow|uperuser|erverfault)|askubuntu)\.com\//
// @license agpl-3.0-only
// @grant none
// @version 1.2.0
// @run-at document-body
// @description Sets StackOverflow, SuperUser, and other StackExchange based sites to always use your system theme
// ==/UserScript==
// jshint esversion: 11
globalThis.document.body.classList.add('theme-system')