chyrp/chyrp — pull request #216 by xenocrat (2014-11-08 20:36:11+00:00)
Title: Photo feather: added support for image source sets

Photo feather will now generate a `srcset` with image sizes at several common breakpoints: 960w, 640w, 320w, plus the size requested by the twig. The use of a source set allows user agents to select the most optimal image to download.