Resized mm and nobody images are not optimised

[François Marier]

The original SVG image exported to PNG is much more optimized than the resized PNGs:

$ ls -l mm/
...
5,8K jun 27 00:24 508.png
5,9K jun 27 00:24 509.png
5,9K jun 27 00:24 510.png
5,8K jun 27 00:24 511.png
4,4K jun 27 00:24 512.png

$ ls -l nobody/
...
19K jun 22 20:48 509.png
19K jun 22 20:48 510.png
19K jun 22 20:48 511.png
7,4K jun 22 21:20 512.png

Which means that the generate_all_sizes.sh script needs to change.

Perhaps it needs to script GIMP to export SVG images down to the right sized PNG file.

Also, it should run:

  pngnq -f -n 32 -s 3 nobody.png

to drop the palette down to 32 colours (5 bits) instead of 32 bits because it still looks just fine.

[François Marier (fmarier)]

Changing the color type might help as well:

  pngcrush -c 2

removes the alpha channel (for colour images that don't need transparency) and:

  pngcrush -c 0

removes the colour channel as well (for grayscale images).