Sparkling is a clean and simple theme for Drupal designed by Gilli. The theme reuses a lot of features from the Skeleton theme but visually it is very different.
The Entity Fields Builder module enhances Drupal's standard "manage fields" interface, making it possible to quickly add multiple fields to a content type or other fieldable entity, using field templates based on properties of standard content schemas such as the ones available at Schema.org. The advantages of standardized, schema-based field definitions include:
Better searchability. Using the Schema.org module, you can automatically and easily add markup to web pages that enables search engines to better recognize the semantic meaning of the content on those pages. This provides search engine optimization. Major search engines including Bing, Google and Yahoo! have agreed to recognized Schema.org-based markup in order to improve the display of search results.
Better interoperability. The Schema.org module provides RDFa markup, which means that the content on web pages can be extracted automatically using the SPARQL query language or as Google Rich Snippets. In effect, other websites and applications can use your Drupal site not just as a source of web pages, but as a sort of database from which information can be queried and programmatically retrieved.