All 70 color schemes are in one table in the database, and the database allows you to customize any of them.
There have been a lot of DB downloads taken from the site here and I'd love to see some of your custom creativity. If you'd like to share your schemes, you can upload a db containing just the table, cctColors for everyone to import and admire. You can PM me for my email address if you'd rather not upload to the site.