Color Group Members - It won't color the names!

I've created my groups, however, I want them to be coloured.

So I chose the colour, and then I CHECKED the "Color Group Members"

But when I look in my forum, the colors are still the same! They don't change to the colors I picked!

And I'm not talking about the "RANK TITLE" where you can easily put the HTML code to change the color of the rank text.

Im talking about, for example, I want all moderator's usernames to be in red. Or all administrator's usernames to be in blue (the color should show on the legend as well).

EDIT: I found it. It was in the "User Options" where I had to click the "Colorize Usernames" box.