You must create those images yourself and upload as "Background image". As we wrote under this field, we recommend to upload images in square format. Those images were created by us and for demo purposes only. If you want to use the same as on demo, then visit demo page where we got them, download on your computer and then upload into your wordpress
Comments
to upload own icons/images for "how it works" item, please just edit this item using Muffin Builder tool.
Thanks!