Retina Responsive WordPress Theme
http://themeforest.net/item/impreza-retina-responsive-wordpress-theme/6434280 This is an affiliate link FYI.
Frameworks · WordPress Theme
Get access to data on 159,248 websites that are Impreza Customers. We know of 73,760 live websites using Impreza and an additional 85,488 sites that used Impreza historically and 29,625 websites in the United States.
Get a list of 159,248 websites using Impreza which includes location information, hosting data, contact details, 73,760 currently live websites and an additional 27,986 domains that redirect to sites in this list. 85,488 sites that used this technology previously and 29,625 websites in the United States currently using Impreza.