polymer

Wanted to reference this here in case people didn't see it. We've got https://drupal.org/project/webcomponents module able to go straight from polymer templates to display modes to field UI to rendered output. This completely by-passes the traditional tpl / template file workflow and allows front-end to dictate design to backend (instead of in Drupal where it's usually a mish-mash of both). It's also by-reference so updating your templates sees them updated in Drupal.

https://drupal.psu.edu/blog/post/web-components-polymer-and-decoupling-d...