We're using MapPolygon on the map, and we allow the user configure the map points, the stroke, the stroke thickness, the fill color and the fill opacity. Want to be able to control the stroke opacity separately from the file opacity. We've found that if the stroke thickness is greater than 1, then the stroke line overlaps the filled area. This results in the effect shown in the attached image mappolygon.png i.e. we see the fill color, the line color and a mix of the two colors where they overlap.
What we'd like to have is a filled polygon where the stroke does not overlap the filled area. Can you suggest a way to achieve this effect?