I'm on CS5.
I have a photo, and I want to highlight the central portion of this using a custom shape - let's say a star. When I do this I can work with the shape.
I don't want to work with the shape, I want it to be there, but the image inside the shape I want to remain visisble. Then round the edges of the shape I want to add borders (?Stroke) of colours selected from the image. Obviously I don't want to hand draw the shape because I won't make it symetrical.
So, once I've chosen my shape, how can I work outside the shape, whilst still retaining visibilty inside the shape?