Dynamically swap sender avatar in Gmail compose by current "Send As" FROM address, with full debugging

	// ==UserScript==
	// @name Gmail Send-As Avatar Swapper (Multicompse, Debug)
	// @namespace http://tampermonkey.net/
	// @version 1.2
	// @description Dynamically swap sender avatar in Gmail compose by current "Send As" FROM address, with full debugging
	// @match https://mail.google.com/*
	// @grant none
	// ==/UserScript==

	(function () {
	'use strict';


	function updateAvatars() {
	const avatarMap = {
	"xxxxxx@gmail.com": "https://www.yourdomain.com/xxxxxx.png",
	"yyyyyy@gmail.com": "https://www.yourdomain.com/yyyyyy.png"
	};

	document.querySelectorAll('form.bAs').forEach(form => {
	const fromInput = form.querySelector('input[name="from"]');
	if (!fromInput) return;
	const currentFrom = fromInput.value;
	const avatarUrl = avatarMap[currentFrom];
	if (!avatarUrl) return;

	// Try all likely containers (form, parent, grandparent, siblings)
	const possibleContainers = [form, form.parentElement, form.parentElement?.parentElement];
	let senderAvatar = null;
	for (const container of possibleContainers) {
	if (!container) continue;
	senderAvatar = container.querySelector('img.ajn[jid]');
	if (senderAvatar) break;
	}

	if (!senderAvatar) {
	console.log('[AvatarSwap] Sender avatar not found in any container for From:', currentFrom);
	return;
	}

	if (senderAvatar.src !== avatarUrl) {
	console.log('[AvatarSwap] Updating avatar src:', senderAvatar.src, '->', avatarUrl);
	senderAvatar.src = avatarUrl;
	}
	});
	}


	// MutationObserver + polling ensures robustness
	const observer = new MutationObserver((mutations) => {
	console.log('[AvatarSwap] DOM mutation detected');
	updateAvatars();
	});
	observer.observe(document.body, { childList: true, subtree: true });

	// Fallback timed polling (handles edge cases or missed mutations)
	setInterval(() => {
	console.log('[AvatarSwap] Timed poll running updateAvatars...');
	updateAvatars();
	}, 1500);

	// Initial run on script injection
	updateAvatars();
	})();