Hi,
In the layout view, I am trying to mimic a "rounded box" effect for a Map Frame, as shown below:

For the time being, I tried using a buffer (set to 10 pts) but the content of the Map Frame cannot fill the rounded part!
I used the buffer for regular rectangle and it worked perfect, as shown here:

c
Is there any setting I may use in order to mimic the "rounded box" effect for a Map Frame? Perhaps other than the buffer...
Thanks