#!/bin/bash

if [ -z "$1" ] || [ -z "$3" ] || [ -z "$3" ]
then
  echo "Syntax: svg2png <source.svg> <dest.png> <16x16> [<negate>]"
else
  if [ -z "$4" ]
  then
    convert -background none -resize $3 -gravity center -extent $3 $1 $2
  else
    convert -background none -resize $3 -gravity center -negate -extent $3 $1 $2
  fi
fi