krisbulman/retina-sprite-mapper — pull request #3 by krismeister (2013-05-03 07:21:38+00:00)
Title: Varied image sizes

I found the typo to fix this issue https://github.com/krisbulman/retina-sprite-mapper/issues/1

But I also wanted to make the case to switch the default `$with-dimensions` params.
The current defaults expect icons to be of the same-size, where as I'm thinking most developers will have icons of varying sizes.

This mixin is great by the way!