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 151,520 websites that are Impreza Customers. We know of 68,390 live websites using Impreza and an additional 83,130 sites that used Impreza historically and 28,160 websites in the United States.
Get a list of 151,520 websites using Impreza which includes location information, hosting data, contact details, 68,390 currently live websites and an additional 27,446 domains that redirect to sites in this list. 83,130 sites that used this technology previously and 28,160 websites in the United States currently using Impreza.