From looking at this Salesforce documentation it looks like this is actually stored as metadata, not in a Salesforce Object, so to uncover it, you may need to dig into some Apex or Visualforce code.

I have a vague recollection of a thought that with Skuid’s REST model capability we could build models on salesforce metadata using some kind of metadata REST api. Does that sound like a thing?

Hmm, I took a brief look at the docs, and apparently the Metadata API and Force.com REST API are different things. Anyone know if there is a way to build skuid models on salesforce metadata?