When I select text in word (win 8.1, MS office 365) the background color is difficult to see. It is a light grey that dos not show up well. I think it used to be blue.

How can I change the color to blue? Note: I am not asking about how to change the color of selected text, or how to change the background color behind the selected text.

I am looking to change the color that shows what text I am selecting.

TIA - daylee