My suggestion would be to strip the branding (easier with these than with the jpg files—it took me longer to open Inkscape than to test-delete the KDE logo from aurora) and include a static PNG rendering of each svgz in the core wallpaper set. The svgz files themselves can go to Planet-Trinity, if such a thing ever comes into existence.
As for the other four images, default_gears, kraftwurm, and mystical_rightturn are probably fixable with a bit of effort. kubical might be as well (or at least I have a tentative idea of how it might be done), but I don't think it's worth it—more efficient to purge it.
Do you want me to take this on? If so, where do you want the finished files sent?
There is one other thing about the wallpapers, though: everything in the default set is sized for an old-style 4:3 monitor. Most people these days use 16:9 widescreens. We need some wallpapers that are designed for that aspect ratio. A few of the existing ones can probably be cropped to conform, but adding something new might be better.
Yes, please move forward with this if you feel up to the task.
Send the completed images here to this list as attachments or save then somewhere in internet land where all of us have access.
An easy fix for branding issues is not to convert "KDE" to "TDE." Just delete the text, leaving only the image.
Regarding the 4:3 vs. 16:9 challenge, we could create two versions, one for each aspect ratio. I understand SVG lends well to solving that problem, but test them on a PIII. I'm not going to salvage anything that does not render immediately on older hardware, let alone my dual core. :) Wallpapers cannot bog down a system. I have no idea who would find celtic.svgz usable on any system as wallpaper.
Darrell