Make it more explicit that the TurboWarp editor exists
Recent review on the Microsoft Store: (machine translated)
Initially, I found a TurboWarp site that could convert sb3 files into future exes. It was there that I saw the features I needed, such as my scene size, high quality pen, frame removal, and so on. But there was a problem, all these functions I had to try blindly! I had to create a project without these settings, process it, and only then check. It was very uncomfortable! But then I found this app! It has all these features in the Scratch editor itself! This is very convenient for creating just projects, and for their further processing into exe or html! [truncated]
Maybe you could add a button to the packager that shows after a user loads a project. The button could say "Edit with Turbowarp Editor" and open the editor in a new tab... I don't know if that works as a complete solution, though...