Not so nice.

[DonQuiche]

I just stumbled upon that in the game files ("assets/UI/InGame/DebugMenu.xml").

<!-- Created with Liquid XML Studio - FREE Community Edition 7.1.4.1284 (http://www.liquid-technologies.com) -->

I didn't read the Liquid XML Studio's license for the community edition but I bet it doesn't apply to the creation of commercial games with a multi-million dollars budget.

 

[The_J]

I doubt the budget is that huge, but whatever.

Just checking the site, it seems there's no community edition anymore.
The EULA of the current products (all at the beginning free, it seems) doesn't say anything about the commercial use for any of the created files, besides the education version.

So while this seems to be strange, it also seems to be legit.