[sayuncledave]

Hi Biggirl,
I’ll do my best. The phrase is one I first read at Father Z’s What Does The Prayer Really Say, where he uses it to indicate that which a priest is supposed to do during the course of Mass, in reference to the Roman Missal. The black meaning those words to be pronounced, and the red for actions indicated. Father Z isn’t the only priest who writes about this, but his was the blog where I first read the phrase. A recent example:

http://wdtprs.com/blog/2012/02/action-item-poll-alert-should-priests-be-able-to-change-the-words-of-mass-when-he-wants-to/

I hope that helps.

[Biggirl]

Thanks also for the helpful info!