I have a rounded rectangle graphic 500x500
It has a background pattern (an image 500x500
If i set an outline of 1 everything is fine and i see perfection.
But i don't really want a border, but without a border i see flat spots on each edge of the rounded graphic (see image)

The perfect circle is actually full & those spots appear black.
I tried with a larger image just in case i was a pixel or 2 out, but thats not the issue.
Docs say they backgroundpattern will be drawn inside the borders, but as i have no border i would expect this to be fine.
Is there anything i could be missing, like, is there actually still a border there, even though i have set the linesize to 0 in the property inspector (there does not appear to be an explicit border setting for the graphic).