Maybe I haven’t clicked on an image attached to an email in my Yahoo! account for quite some time, but I think this is new.
Yahoo! Mail now uses the “lightbox” functionality and feature to let you preview and see image attachments in your e-mails. In the past I think I’ve always just clicked on file name itself and downloaded the images to view them, but bad aim this morning caused me to click the image itself and I got this preview.
It’s a minor thing but I think it adds a lot to the page as for the aesthetics and functionality for users.