There are a selection of built in hover effects to alert the user that something more lurks within when clicked. Clicking triggers a unique animated transition from the smaller image in the page, to a full size light-boxed view of the image.
The stack is mobile smart too. After all, there is little point offering a way to enlarge an image that already occupies the full width of a small screen, so Swell will never try. On very small screen devices, Swell just masquerades as any other regular image in your page.
Oh - and it’s really really simple to use :-)