Yeah, Flobber pretty much got it right, there's no way to change to the HD colour scheme but there're a variety of others to choose from.
Also, for what it's worth, I didn't like this version of the game anywhere near as much. I've played it several times as well but I just can't be bothered to keep going with it.
![Sad [:(]](/emoticons/emotion-6.gif)
Don't get me wrong, it's not a terrible game, it just didn't click with me.
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