I may have figured out what was causing the problem with celtic (or not, but those nigh-invisible dotted borders on the roundel looked awfully suspicious, so I replaced them with plain ones while I was messing with the lettering).
The revised version displays much faster. Good job!
Anyway, the attachment contains re- or de-brands of all the original problem svgz files except moon, which is going to be a little more work because that K on the moon itself is done as negative space. In all cases, I've included both the original svgz (which should be stored somewhere even if it's not distributed from now on, in case we want to render a variant), and a 1600x1200 PNG image version which may require less horsepower to display than the vector version. I would suggest running a comparison test before deciding what to distribute.
Not sure what happened or what I am doing wrong. When I view two of the revised svgz images, I see only blocks where the text used to be. I am using gwenview to view the images. The originals don't do this:
http://humanreadable.nfshost.com/trinity/build_logs/gwenview3.png
http://humanreadable.nfshost.com/trinity/build_logs/gwenview4.png
All of these files appear to belong to tdebase (kdebase-data on my system) rather than to the artwork package.
The other images I listed must be from other packages.
Darrell