As you can see there is some experimentation going on.
Just testing a few other ‘look-and-feel’ solutions and alternate formats. You should have seen it earlier, changing looks every five minutes.
The possibilities are very large, but a new model of theme-building has taken over the community. Themes are released as “lite” or limited, to try to get people to try them, but to get the versions with all the features, you have to buy a full version.