WARNING: concrete5 5.6 and earlier are end-of-life. Sales from the marketplace have now ended. Click here to learn more about this transition.
Orange Pro is a clean, customizable Concrete5 theme that is a combination of orange, greys, red and white. Primarily built for product and service sites, it can be adapted to suit whatever site you're building.
It comes pre-loaded with additional styles that you can use in your site.
See it in action here: http://solidinc.org/index.php/themes/orange-pro