If you want the background behind your content as well, add it as usual (wp-admin > Appearance > Background), then add the following to the Additional CSS box on the Advanced tab of the WP-Drudge Options page:
On topic for this thread: Working on the new version now and you can watch progress here:
That first list is the list of features I’m tackling for the next version. If you have any direct feedback about those, feel free to comment or vote there (need an account but free and easy). Feel free to post feature requests here or through the contact form linked in the top navigation.