Styling a GroupBox

Question

I\'m trying to create a GroupBox design like this.

I have looked at th

Answer 1

I realize this is way late, but the MahApps.Metro package has a nice GroupBox that seems to like nearly exactly like what is posted in the OP.

https://github.com/MahApps/MahApps.Metro/blob/develop/MahApps.Metro/Styles/Controls.GroupBox.xaml

Here's the Xaml from version 1.22