That would be amazing, because the gameplay itself is incredibly fun. I'll set myself a reminder to check back in a while ;)
Oh! Also, you can paint your own levels. There are two PNG files in the data directory. The foreground one will be marked as solid and destructible. I think they need to be the same size, but they might not.
I did already play around with that! Smart idea to include the custom background ingame and tell people in writing that they can replace it, haha.