On the forums, Tyreth wrote:
>Note to artists: We will be using the 2.5 version of
>this license, not the 2.0.
However, the COPYING file in C:\FreeOrion\default and
in-game License page in the FO releases says:
>The artwork (images, sounds, music, etc.) is licensed
>under the Creative Commons Attribution-Share-Alike 2.0
This should probably be corrected, and I'm disinclined
to do so myself for legal matters such as this. I pmed
Tyreth, but he didn't respond.