(https://ggnome.com/wiki/HTML5_Output_Se ... ad-Preview):
But if I type a "1" into the box, it reverts to "2". (Resolution: 1:2). How can I get this to 1:1, so there's no lower-res preview?Resolution: This represents how sharp or blurry the download preview image will appear. This setting will effect the file size. The default setting is 1:4 which is a reasonably good setting. Setting it to 1:1 makes the downloading image as clear as the original image.