Oh, sorry - It looks like I didn't post my themes on that thread at the top of this Google Group. However, there is a thread with some custom themes, to which I posted my Themes and Auto-formatting rules as a reply, on this link:
In my reply, I also made a few notes on the logic behind the colour selection. This may prompt you to try some other combinations of your own, to improve on my changes. Or you could start from the "Forest" or "Midnight" theme posted by Limbic.
(that thread with attached example Themes also comes back as the first search result, if you search for the word "theme". It's titled: "Re: [MLO] MLO Themes (6 for free download) and few questions.")
Regards,
Stéph