Underskeleton WordPress free download. Mobile Friendly, fast and easy to work with. Underskeleton is the WordPress Starter Theme for your next WordPress Theme or Website. It has beautiful typography, custom colors options and a whole set of editing options in the content editor. Underskeleton is designed to be a starter theme and comes with many developer tools. IMPORTANT: If you plan to change Underskeleton please read the README.md file in the theme directory to learn more about developing with it.