Exercism Dark Mode

Enables dark theme in exercism.org

K instalaci tototo skriptu si budete muset nainstalovat rozšíření jako Tampermonkey, Greasemonkey nebo Violentmonkey.

You will need to install an extension such as Tampermonkey to install this script.

K instalaci tohoto skriptu si budete muset nainstalovat rozšíření jako Tampermonkey nebo Violentmonkey.

K instalaci tohoto skriptu si budete muset nainstalovat rozšíření jako Tampermonkey nebo Userscripts.

You will need to install an extension such as Tampermonkey to install this script.

K instalaci tohoto skriptu si budete muset nainstalovat manažer uživatelských skriptů.

(Už mám manažer uživatelských skriptů, nechte mě ho nainstalovat!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(Už mám manažer uživatelských stylů, nechte mě ho nainstalovat!)

// ==UserScript==
// @name         Exercism Dark Mode
// @version      1.0.0
// @description  Enables dark theme in exercism.org
// @author       7heMech
// @license      MIT
// @icon         https://www.google.com/s2/favicons?sz=64&domain=exercism.org
// @match        https://exercism.org/*
// @run-at       document-start
// @grant        none
// @namespace https://greasyfork.org/users/1193487
// ==/UserScript==

(function() {
    'use strict';

    const body = document.body;

    toggleDarkTheme();

    function callback(mutationList, observer) {
        mutationList.forEach(function(mutation) {
            if (mutation.type !== 'attributes' || mutation.attributeName !== 'class') return;
            toggleDarkTheme();
        })
    }

    const observer = new MutationObserver(callback);
    observer.observe(body, { attributes: true });

    function toggleDarkTheme() {
        if (!body.classList.contains('theme-light')) return;
        body.classList.remove('theme-light');
        body.classList.add('theme-dark');
    }
})();