Hello, thank you for this extension. I seem to be running into some minor errors. (I am using Windows 10, and GMS 2.3.)
When right clicking on the game, it'll display the name as window_frame_host.exe, with its associated icon. Clicking the icon will show the empty black window: "this is a helper program for window_frame.dll". I've also inconsistently found that trying to close the game project on its own will leave the window frame onscreen. It's hard to recreate this bug, though. Thanks for your time.