Originally posted by Veseljko:

Why would you mess with game files yourself?
Isn't it easier to install mods which were made exactly for cases like this?

In some other games (for example, Avorion springs immediately to mind), the game is controlled by plain-text configuration and script files in the game's data folder. It is not unreasonable to think that might be the case here.

For clarity, in this case it's not... but the thought that it might be isn't at all unreasonable.