Non-Native App - What Is It?

Just curious about an app from a 3D camera maker that is definitely non-native (and a shortcut to compatibility with Windows apps???) and reminds me of something in the past like X-Windows with a crude file browser that displays long pathnames from the root. The entire app is within one "Mac" window and the app's actual menu is inside that window (link to screenshot below)


What do you think they are using?


https://www.icloud.com/iclouddrive/0hrj-_4J0eIeJ5FqtGk8FAI5A#vuzeapp.png

Non-Native App - What Is It?
 
 
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