All files in this folder are modified from the game 0 A.D. Empires Ascendant 
(https://play0ad.com/) from Wildfire Games (https://wildfiregames.com/). 
The date of the modification can be seen in the metadata of the files.
The original files are therefore Copyright (C) Wildfire Games.

Information about 0 A.D:
0 A.D. is released as open source: you can freely use, copy, modify and
distribute the game's source code and data files, as long as you include
attribution to Wildfire Games and let anyone freely modify and distribute any
of your own modifications to the game's files.

Here is the link to the people who contributed to 0 A.D.
https://trac.wildfiregames.com/browser/ps/trunk/binaries/data/mods/public/gui/credits/texts
	
The original files are licensed according to this document: https://trac.wildfiregames.com/browser/ps/trunk/LICENSE.txt

The modified files have the same license:

Creative Commons Attribution-Share Alike 3.0
(CC-by-sa) license, available at http://creativecommons.org/licenses/by-sa/3.0/