Slimsy (nuget): Slimmage.js used in conjunction with ImageProcessor.Web (included in Umbraco v7.1) and the built-in Umbraco Image Cropper will make your responsive websites images both adaptive and "retina" quality (if supported by the client browser).     Slimsy installs everything you need to use Slimmage.js in Umbraco v7.2. It includes Slimmage.js, SlimResponse and some helper methods that work with both dynamic and typed published content models.
Keywords: responsive|images|client-side|javascript|umbraco