Great work! I'm wondering if you could leverage DiscMaster or my Macintosh Magazine Media collection to hunt for themes? You'd just search for the type or creator code. Not that you're short of themes. I did this sort of search recently for tilesets for MaciGame and found over 350 plus I am notified of any new additions thanks to DiscMaster search RSS https://news.ycombinator.com/item?id=43551222