So I've seen alot of applications that has this type of design to it and I'm really curious on how it is done. Makes it look a bit more "Professional"
What it is is a box like so
I dont have an application with code at the moment but I would create one with this feature if I knew how it was done and what its called.
I tried googleing stuff like "How to draw a rectangle in wpf" and similar things but the things that popped up we're not what I was looking for.
Here is a picture showing you a example
<GroupBox> <GroupBox.Header> <Label>Hello</Label> </GroupBox.Header> <TextBlock Text="World!" /> </GroupBox>