// ==UserScript==
// @name         YouTube Mobile Non-Rounded Design (2021 Layout)
// @namespace    http://tampermonkey.net/
// @version      1.0
// @description  Disables YouTube's new rounded corners on mobile, reverting to the 2021 layout.
// @author       You
// @match        https://m.youtube.com/*
// @grant        GM_addStyle
// ==/UserScript==
(function() {
'use strict';
GM_addStyle(`
/* Remove rounded corners from video thumbnails */
ytd-thumbnail, img {
border-radius: 0 !important;
}
/* Remove rounded corners from video cards */
ytd-compact-video-renderer, ytd-video-renderer, ytd-grid-video-renderer, ytd-rich-grid-media, ytd-rich-item-renderer, ytd-item-section-renderer {
border-radius: 0 !important;
}
/* Remove rounded corners from buttons and other UI elements */
button, paper-button, yt-button-shape, yt-touch-feedback-shape, paper-icon-button, yt-icon-button {
border-radius: 0 !important;
}
/* Remove rounded corners from dialogs and menus */
paper-dialog, paper-menu-button, paper-listbox, paper-item {
border-radius: 0 !important;
}
/* Remove rounded corners from input fields and search bars */
input, textarea, ytd-searchbox {
border-radius: 0 !important;
}
/* Remove rounded corners from bottom navigation */
ytd-mini-guide-renderer, ytd-app-bottom-nav-bar-renderer {
border-radius: 0 !important;
}
/* Remove rounded corners from comments and comment sections */
ytd-comment-renderer, ytd-comments {
border-radius: 0 !important;
}
/* Remove rounded corners from channel avatars */
yt-img-shadow {
border-radius: 0 !important;
}
/* Remove rounded corners from other general elements */
.style-scope, .yt-spec-touch-feedback-shape__fill {
border-radius: 0 !important;
}
`);
})();