A new content listing layout "Stack2" was adding in Sytist version 0.8.4 (screen shot below). You can select this layout for your section by editing the section (edit under the section name in the left menu of the Site Content area) click Page Listing Layout and select it there.
But to get the look like below (no padding around the photo), you will need to edit your theme (Site Design -> Edit My Theme), click "Thumbnail Listing" in the left menu. Set the padding to 0 (see screen #2 shot below).
Screen shot #2 in theme editor
