I noticed an issue with Gmail's 'Send mail as' feature. After setting up few additional email addresses (aliases), whenever I reply to an email and use these aliases (change FROM email id), the profile icon on the left doesn't get updated and stays the same as the logged in gmail user's profile icon. This was causing confusion whether I selected the right FROM email id or not.

So, I wrote a small greasemonkey script to update the profile icon dynamically when the FROM email id is changed. Although the profile icons for different 'FROM email ids' are still hardcoded.

This post is intended to reach the Gmail development team so that they fix the issue at root.

Thank you