I'm looking for a software recommendation that will allow me to view an image file that changes frequently, that ideally updates the display within 1 second after the file changes on disk.
Why? I'm working with a tool that generates images, and I want to rapidly test out different options. But it's frustrating to open and close the image after every single change. I'd rather just devote half my monitor to showing what the image looks like right now (latest version on disk) and the other half to working on my image generator.
I've already tried using macOS Quick Look, but it only picks up the first change. After that it doesn't show any more changes.