on Appearance > Customize > Colors > Content, it is set to grey. But it is not, as you can see.
I guess it has something to do with the css settings for link color?
You are right. I had made the setting for Meta Entry but not for Meta Link. But of course this is a Link. Now it works. Thanks.
I was also confused because in the past it was gray out of the box on every GPP installation I made.