Brethren raid frames - font color change

I think a few folks are using Brethren raid frames (an OpenRDX OOBE), so I'm going to ask this here since I'm not having luck with the Brethren area over on wowinterface and then openrdx forum doesn't have any recent activity.

I'm using the GridWide layout. I have it set so the health bar color is by class type, that is, a priest's health bar is white. The text of the player's name is also colored by class. So, in the class of the priest, it is white type on a white health bar which is hard to read.

The Brethren raidframes settings window doesn't have an option for this, and I've spent several hours trying to find what needs to be modified in the Edit UnitFrame dialogue. I suspect that it is a "custom text", but I am not certain which one, and the ones that I have tried do not appear to change anything. A "custom text" that looked promising (RaidFrames: script_gridWideText) didn't make any changes that I could notice. I would just like to change the text color to something a bit more readable. Thank you very much for any assistance.