Convert SVG to PNG icons on Mac

Install librsvg:

brew install librsvg

Then run:

rsvg-convert -h 32 icon.svg > icon-32.png

Convert all files in folder:

for i in *.svg ; do rsvg-convert -h 32 "$i"> "$i".png ; done

Source: https://superuser.com/questions/134679/command-line-application-for-converting-svg-to-png-on-mac-os-x/723031