When you purchase a subscription to a Moovly Pro license, an additional object library becomes available to you: the Paper Cut-out Library. As a user with a Free or Plus license, you can also purchase individual items from this library via the Marketplace.
The Paper Cut-out Library contains, as the name says, graphical objects in a paper cut-out style. Some of these objects have specific animation options (you can also preview these in the Marketplace). You can edit the paper color or change the paper background pattern (4 pattern choices available). The following picture shows a subset of the objects available in this library: