Okay, here are bottom2.png, kde_logo.png, the various mime-koffice images (22px isn't such a great image, but other methods of scaling it down didn't produce anything better), and, as a bonus, the extracted logo as both .svgz and a .png with transparent background. With a little luck, having a drop-in replacement logo will speed up some of the other fixes (although there are some places it may not work all that well compositionally).
Anyway, I'm done for the evening. Hopefully, I'll be able to resume tomorrow.
As Oddball would say, "Woof woof!" Thank you!
Darrell