--- a/scripts/make_pngs.sh	Sun Sep 11 17:23:59 2011 +0200
+++ b/scripts/make_pngs.sh	Sun Sep 11 17:26:05 2011 +0200
@@ -9,8 +9,9 @@
     for x in $svgdir/$subdir/*.svg
     do
         filename=`basename $x`
-        rsvg-convert $x -w $tilesize -h $tilesize -o $pngdir/$subdir/${filename/svg/png}
-        mogrify -strip $pngdir/$subdir/${filename/svg/png}
+        filepath=$pngdir/$subdir/${filename/svg/png}
+        rsvg-convert $x -w $tilesize -h $tilesize -o $filepath
+        pngcrush -q $filepath tmp && mv tmp $filepath
     done
 done