// ==UserScript==
// @name         Update ProtonMail Addy Email Label
// @namespace    http://tampermonkey.net/
// @version      2024-03-25
// @description  Updates Addy email sender labels to use `@` instead of ` at ` for easier viewing
// @author       You
// @match        https://mail.proton.me/*
// @icon         https://www.google.com/s2/favicons?sz=64&domain=proton.me
// @license      MIT
// @downloadURL none
// ==/UserScript==

(function() {
    // run every 10 seconds
    setInterval(() => {
        // update all email labels to use `@` instead of ` at `
        [...document.getElementsByClassName('message-recipient-item-label')].filter(el => el.innerText.match(/.+ at .+/g)).forEach(el => el.textContent = el.textContent.replace(' at ', '@'))
    }, 10 * 1000);

    // Your code here...
})();