Binary package hint: ubuntu-wallpapers
There is pretty important problem in ubuntu-wallpapers package: big (2.6MB) simple-ubuntu.png file is really elephant-skin.jpg and is converted from 372 KB jpg file! Cody Somerville in private chat told me, that this is real bug and gutsy-elephant-skin.jpg (7x smaller) from gutsy-wallpapers package should be used instead of simple-ubuntu.png (such conversion doesn't increase quality, jpg is lossy format, quality will not increase by converting JPG to loseless PNG format).
S, please undo change, made in ubuntu-wallpapers version 0.19 :
ubuntu-wallpapers (0.19) hardy; urgency=low
* elephant-skin.jpg:
- Converted to png (elephent-skin.png)
- Set as default wallpaper (renamed to warty-final-ubuntu.png)
[..]
-- Cody A.W. Somerville <email address hidden> Wed, 19 Dec 2007 15:17:29
Okay, I can confirm that simple-ubuntu.png is the elephant wallpaper and that it is 2.6MB while the two others are around 350-500KB. It doesn't seem to compress so I assume this could save 2MB on the livecd as well, though I may be wrong.
Is there any reason the original JPG can't be used? Or could the original author export directly to PNG to prevent this lossless encoding of a lossy format?