vantage

Vantage is a flexible multipurpose theme. Its strength lies in its tight integration with some powerful plugins like Page Builder for responsive page layouts, Smart Slider 3 for big beautiful sliders and WooCommerce to help you sell online. Vantage is fully responsive and retina ready. Use it to start a business site, portfolio or online store. Maintained by siteorigin on GitHub, where it has earned 70 stars from the community.

It's actively developed around jetpack, page-builder, theme, and is a solid reference for anyone building with these tools.