Odio is free minimal OpenCart theme, which comes in 6 pre-defined light colors. You can use it best for fashion stores. The SEO optimized grid works in all popular browsers, is also responsive for any device. Kulerthemes realized it for OpenCart 1.5.4+ by the use of Google fonts for the typography. You can get it in a commercial version with 5 helpful OpenCart modules. The free theme version is available on developers website.