Orangy

Child-Theme of Twenty – The 2012 theme for WordPress is a fully responsive theme that looks great on any device. Features include a front page template with its own widgets, an optional display font, styling for post formats on both index and single views, and an optional no-sidebar page template. Make it yours with a custom menu, header image, and background.

Orange

Minimalistic two-columns, fixed-width, seo optimized theme for WordPress. Compatible with WordPress 3.1 features, valid XHTML & CSS, custom widgets(Twitter, Flickr, About us).

Opportune

Opportune offers a clean elegant design with linear open spaces, a soft palette of colour, and crisp edges that is perfect for a business wanting a serious theme packed with a ton of features and flexibility. Opportune brings you Unlimited Colours, Responsive Mobility, several Blog Styles, several Page Width options, 19 Sidebar positions, Header Styles, Show and Hide various page elements, Post Formats, Custom Gallery styling, and much more! For theme info, support and more, visit the Opportune Info under the Appearance menu.

Open Pages

Open Pages is a SkyTheme, and features 3 Colour Schemes and 4 Font Stylesets, a dropdown menu, lightbox for pictures, and is translation ready (includes Spanish, Portuguese, French & German). Supports SkyThemes Designer for Massive Customizability! See SkyThemes.com for documentation.

Online Marketer

The Online Marketer WordPress theme is definitely more business oriented. The design brief for this one was simple, smart, and professional. Like all our themes it comes with a full width template included for static content pages. It supports custom menus and widgets so it remains very flexible and could easily be used for a static content site, a blog, or a site incorporating both which is pretty much all sites these days. You can of course swap out the main header image for anything you like to suit your own niche.

Omega

Omega theme is a responsive WordPress theme framework, serving as a robust WordPress Parent Theme. Omega theme supports HTML5 and schema.org code, the semantic foundation for SEO best practices. Omega theme is designed to be simple, yet powerful, flexible to create any site you want via omega child theme. The framework allows theme designers to build child themes quickly without having to code complex functionality for features. Omega framework does these things for theme developers / designers to enable them get back to what matters the most: save time designing and developing beautiful WordPress theme. WordPress child theme handle all the markup, style, and scripts while the framework handles the logic. Simplify your website with Omega theme for WordPress