Scale the texture to the specfied width and height.

def scale_to(self, width_height=Vector2()):
        """Scale the texture to the specfied width and height."""
        scale_amt = Vector2()
        scale_amt.X = float(width_height.X) / self.image.get_width()
        scale_amt.Y = float(width_height.Y) / self.image.get_height()
        self.set_scale(scale_amt)