Color Swatch King: Variants

This app does exactly what I was looking for; to display variant swatch images on the Collection page and to improve the way variants are displayed on the item page. The app didn't fully agree with our theme at first so I contacted Support. They were very quick to reply and to complete the install, even doing a few minor tweaks to get everything looking perfect. I highly recommend this app for the quality of the product and also the Support that backs it up.