The back ground is grey/white gradient
So it's not set to the scheme background color?
A scheme color or not?
To determine this, select the text, click the down-arrow next to the "A" button on the
drawing toolbar. "Automatic" or one of the color chips in the first row may appear to
be "depressed" or highlighted. If so, which? What does the tooltip say when you
hover the mouse over the chip?
And again, what are the scheme colors?