I know I've done this because I currently have an image in the box for an app that I've made, but I'd like to swap the image for something different. I can't find an image button, and can't find any documentation with any details on this. Does anyone know where I can find some info on adding images? It seems I can drag and drop, but that doesn't appear to be what I did. The HTML (which I don't know enough about to do it that way) points to the item in ArcGIS Online; when I drag and drop, it adds a lot of gunk to the code without alt text.