Rounded border - also on the inside?

Hey Kirupas:)

As you can see on the attached image i have a rounded border round an image. The problem is that the border only is rounded on the outside and not on the inside (marked with a arrow). How can i solve this?

The code i use for the border is:,0xFFFFFF,1,true);, 0, content.width,content.height,15,15);

Any suggestions is welcome…:mr_potato: