The default theme for Mura 6.1, Bootstrap 3 has become the most popular framework on the planet. This Mura Site Bundle comes with a completely wired up site to get you up and running lickety-split.
Called "The most advanced responsive front-end framework in the world", the Foundation Mura Site Bundle provides you with a quick and flexible starter site.
A Beautiful Boilerplate for Responsive, Mobile-Friendly Development
Bootstrap 2 shipped with Mura 6.0 but is compatible with Mura 6.1. The Site Bundle includes wired up sample content and the integrated Bootstrap 2 theme.