minor coloring problem.

Hi, I need help finding out which one of the coloring settings I need to edit! What I want to change color of is the text that says "join date" and "post" below the avatar of the person that wrote something on the forum. I cant seem to find that setting anywhere. really annoying with both white background and white text. I want the background to be white, so I have to find out how to change the color of the text.

Go to:
ACP/Users & Groups/Profiles/Fields/Modify Button (name color)

Thanks, tricky one.