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 175,895 websites that are Impreza Customers. We know of 83,400 live websites using Impreza and an additional 92,495 sites that used Impreza historically and 32,518 websites in the United States.
Get a list of 175,895 websites using Impreza which includes location information, hosting data, contact details, 83,400 currently live websites and an additional 37,784 domains that redirect to sites in this list. 92,495 sites that used this technology previously and 32,518 websites in the United States currently using Impreza.