It hides the Octotree button.
// ==UserScript==
// @name Hide Octotree
// @namespace http://tampermonkey.net/
// @version 0.1
// @description It hides the Octotree button.
// @author You
// @match https://github.com/*
// @icon https://assets.stickpng.com/images/5847f98fcef1014c0b5e48c0.png
// @grant none
// @license MIT
// ==/UserScript==
window.addEventListener("load", (event) => {
const bar = document.getElementsByClassName("octotree-toggle");
bar[0].style = "opacity: 0;position: absolute;width: 10px;height: 100%;left: 215px;"
});