Still finding my feet with Zenphoto, but one feature I really like is the on-the-fly caching. It means that I can load my full-sized image into my gallery, but for displaying a resized version, e.g. in a forum post. I can call it into being simply by linking to it.
E.g. original image:
This creates a resized version that is 1024 pixels wide - it strictly determines the width as far as I can tell, so if the image is taller than it is wide then the height will be greater than 1024. But in the Basic theme, there's an option to use the 'longest side' for resizing. So I'm wondering if there's a syntax or an option that will allow me to specify that the longest side is used in an on-the-fly resize.