Oh, don't feel bad! Looking over my reply, I worded some things wrong. Some of the features of the theme editor are not obvious and it's not really clear what you can do, so it's understandable.
I did look at your game but I didn't have anybody to play it with, so I can't really comment on the gameplay. I did think it nailed the minimalist style, though, so I'm sure you'll be able to make good looking page too.
If you want to check out my game, I'd really appreciate that too!