Thanks, Bill, I have modified my Start Screen pic and the colors of my tiles.
Interestingly enough, however, I did that a number of days ago but tonight was the first time I saw the message changed.
I haven't noticed anything bad, yet.
You are truly a font of knowledge, Bill, and I thank you for all of your guidance, sincerely.
The only thing I did in the interim was to place the Task Manager on my Start screen and, as I did so, I searched for "TM.exe" and came up with a bunch of choices and foolishly clicked away. Some of them came up with only a blank Task Manager window ... odd.
I figured out the right one, finally. I wonder if that had something to do with it.