There are two issues, both are not related to color depth. One problem
is that the image does not use dithering, second is the jpeg
compression. Xsplash renderer seems not to deal with either very well.
To resolve this problem, two things can be done: image should have
dithered colors and the compression should be lower (ideally none). The
latter isn't really possible, due to the limited space on a CD (non-
compressed png is about 2.5MB). Attached is the new version, with
slightly lower compression and dithering. Please test and report the
results!

Cheers,

Mat

** Attachment added: "xsplash_bg_new.jpg"
   http://launchpadlibrarian.net/33875810/xsplash_bg_new.jpg

** Changed in: xsplash (Ubuntu)
       Status: Confirmed => In Progress

** Changed in: xsplash (Ubuntu)
     Assignee: Mat Tomaszewski (mat.t.) => Cody Russell (bratsche)

-- 
boot and gdm "wallpaper" is not dithered
https://bugs.launchpad.net/bugs/441210
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