Boy, it's amazing what you forget about #changed: and #update: and
pluggibility.

Anyhoo, a new version of the CategoricalSMLoader is now on SqueakMap. Yes,
I admit it, I caved. Oh well.

Enjoy. I just figured out that my install button in the fancy version is,
well, much dumber than it should be. Consider this more an experiment in
alternative not-quite-so-minimal SM UI designs.

Cheers,
Bijan Parsia.