Leetcode change font

script.js

// ==UserScript==
// @name         Change LeetCode Font
// @namespace    http://yourwebsite.com
// @version      1.0
// @description  Change the font in LeetCode code editor to JetBrains Mono Nerd Font
// @match        https://leetcode.com/*
// @grant        none
// ==/UserScript==

(function() {
    'use strict';

    // Define your desired font
    var desiredFont = "JetBrainsMono Nerd Font, monospace";

    // Function to update the font for code editor elements
    function updateFont() {
        var codeEditorElements = document.querySelectorAll('.view-lines.monaco-mouse-cursor-text');
      	var marginElements = document.querySelectorAll(".margin-view-overlays");
        codeEditorElements.forEach(function(element) {
            element.style.fontFamily = desiredFont;
        });
      
      	marginElements.forEach(function(element) {
            element.style.fontFamily = desiredFont;
        });
    }

    // Mutation Observer to detect changes in the page
    var observer = new MutationObserver(function(mutationsList, observer) {
        for (var mutation of mutationsList) {
            if (mutation.type === 'attributes' && mutation.attributeName === 'style') {
                // A style attribute has changed, so update the font
                updateFont();
            }
        }
    });

    // Observe changes in the document
    observer.observe(document.body, { attributes: true, subtree: true });

    // Update the font when the page initially loads
    window.addEventListener('load', updateFont);
})();