func (gc *GraphicContext) StrokeStringAt(text string, x, y float64) (cursor float64) {
	return gc.drawString(text, stroked, x, y)
}
func (gc *GraphicContext) StrokeStringAt(text string, x, y float64) (cursor float64) {
	return gc.drawString(text, stroked, x, y)
}
// StrokeStringAt draws the contour of the text at point (x, y)