It's painful to attempt to understand what sizes what images should be. The information may be in the documentation, but the best place for that information is where and when you need it: at the time of upload.

It's far too easy to upload an image that is the wrong dimensions and therefore looks like **** in many settings. It would be very helpful to know what dimensions and file sizes will give the best results, for every image that we can upload. This information will be most clear when shown alongside the upload form field control itself.

To be clear, putting this information in the documentation is not the request here. The request is for the information to appear in the upload control on the webpage where uploading is happening. Thank you!