Google Chat Dark Mode

dark-chat.user.js

// ==UserScript==
// @name         Dark Chat
// @namespace    https://gprasanth.in/
// @version      1.337
// @description  Dark Mode support for Google Chat! Already!!
// @author       @gprasanth
// @match        https://chat.google.com/*
// @downloadURL  https://gist.githack.com/gprasanth/6b58679eafe8f13faafced6df7f0aac2/raw/dark-chat.user.js
// @updateURL    https://gist.githack.com/gprasanth/6b58679eafe8f13faafced6df7f0aac2/raw/dark-chat.user.js
// @grant        none
// ==/UserScript==

(function() {
    'use strict';

    const includeScript = function (url) {
        var script = document.createElement("script");
        script.src = url;
        document.head.appendChild(script);
    };
    const joinDarkSide = function () {
        includeScript('https://cdn.jsdelivr.net/gh/gprasanth/gchat-themes@master/dist/standalone/dark-mode.js');
    };
    const stayGreen = function () {
        includeScript('https://cdn.jsdelivr.net/gh/gprasanth/gchat-themes@master/dist/standalone/slack-mode.js');
    };

    window.matchMedia('(prefers-color-scheme: dark)').addEventListener('change', e => {
        if (e.matches) joinDarkSide();
        else stayGreen();
    });

    if (window.matchMedia && window.matchMedia('(prefers-color-scheme: dark)').matches) joinDarkSide();
    else stayGreen();
})();