The fill rule for a stroke path is irrelevant and the rasterizer should use whatever fill rule that the stroking engine requires to make the stroked version of the path look correct, but the native pisces front end configures the renderer to use the fill rule of the source path rather than the value that the stroker recommends. The result is that the interior path excursions that the stroker inserts as part of its operation become visible in the rendered results if the source path used the EvenOdd rule (rather than the NonZero rule that the stroker is intending to be used).