Adds a toggle button to switch YouTube between dark and light text mode
// ==UserScript==
// @name YouTube Dark Mode Toggle
// @namespace http://tampermonkey.net/
// @version 1.1
// @description Adds a toggle button to switch YouTube between dark and light text mode
n // @author You
// @match https://www.youtube.com/*
// @grant none
// @license MIT
// ==/UserScript==
(function() {
'use strict';
// Create toggle button
const toggle = document.createElement('button');
toggle.innerText = 'Toggle Dark Mode';
toggle.style.position = 'fixed';
toggle.style.bottom = '10px'; // bottom-left corner
toggle.style.left = '10px';
toggle.style.zIndex = '9999';
toggle.style.padding = '10px';
toggle.style.backgroundColor = '#000';
toggle.style.color = '#fff';
toggle.style.border = 'none';
toggle.style.borderRadius = '5px';
toggle.style.cursor = 'pointer';
document.body.appendChild(toggle);
let darkMode = false;
toggle.addEventListener('click', () => {
darkMode = !darkMode;
if (darkMode) {
document.body.style.backgroundColor = '#111';
document.body.style.color = '#fff';
document.querySelectorAll('*').forEach(el => {
if (el.tagName !== 'SCRIPT' && el.tagName !== 'STYLE') {
el.style.color = '#fff';
}
});
} else {
document.body.style.backgroundColor = '#fff';
document.body.style.color = '#000';
document.querySelectorAll('*').forEach(el => {
if (el.tagName !== 'SCRIPT' && el.tagName !== 'STYLE') {
el.style.color = '#000';
}
});
}
});
})();