draw2dpdf/gc.go
func (gc *GraphicContext) Stroke(paths ...*draw2d.Path) {
	_, _, _, alphaS := gc.Current.StrokeColor.RGBA()
	gc.draw("D", alphaS, paths...)
	gc.Current.Path.Clear()
}
func (gc *GraphicContext) Stroke(paths ...*draw2d.Path) {
	_, _, _, alphaS := gc.Current.StrokeColor.RGBA()
	gc.draw("D", alphaS, paths...)
	gc.Current.Path.Clear()
}
// Stroke strokes the paths with the color specified by SetStrokeColor