A meal has one main image (click the large image box to upload) plus a gallery of secondary images. Click Add image under the main image to upload another; the button hides after three thumbnails, and the gallery itself holds at most nine extra images. Hover a thumbnail and click its x to remove it on the next save. When two or more thumbnails exist, a Drag the images to change order hint appears - drag them and the order is saved immediately. Images are saved as JPG when you click Save.