I found out how to control the text color in Jono’s source doc—I’m not sure why I originally assumed the style was added manually. It is, in fact, also controlled via conditional formatting, just via a separate rule, which seems workable.
See rule: All Rows with custom Font color set to white and Apply To set to “Name”
With that, I also need to echo how grateful and impressed I am at the work that went into the doc!