PM? I can do that. I thought posting in this section was the way to get his eyes on it.
and some limited success.
There is a spot in the lower-left of the touchscreen, that is titled "SEL". Touching this will bring up a series of digital slider controls. The two that will control screen color are "CON" & "COL". This stands for Contrast and Color.
Reducing the COL (color) adjustment will take it all the way to black & white. It will no longer be blue (good), but you can not choose a more functional color either. Oh well, at least it is not blue.
Then reducing CON (contrast), will flatten the brightness across the screen.
Using a combination of these two adjustments can give a very muted blue that is not disrturbing to the eye, when driving (day or night).
I will post some picture in this thread, as soon as I can.