I noticed this myself. On OSX the window height gets limited by the OS. I haven’t had time to see if that can be sorted somehow.
The idea is that it should resize the window to all the resolutions needed for app store submissions and automatically take screenshots. I’ve spent maybe 90 minutes on it so far, based on the question asked here in this post. It is not finished and not announced as a tool for people to use (yet).
Yeah, that would work. But it would mean more work for the developer and I’d like to prevent this.