Toura/mulberry — pull request #412 by ngauthier (2012-03-27 19:25:01+00:00)
Title: scale icons instead of sampling

switch from the `-sample` option to the `-scale` option for `convert`. `-sample` uses nearest-pixel sampling, but `-scale` has a better sampling algorithm (pixel averaging).

We could also use `-resize` for possibly better quality but longer processing time. See [ImageMagick's Resizing documentation](http://www.imagemagick.org/Usage/resize/#scale).