YFLOWSHEET_PILLOW_MISSING:
            Warning(&#34;Pillow is not installed. You cannot render to the bitmap context!&#34;)
        self.img = Image.new(&#34;RGBA&#34;, size, (255, 255, 255, 255))
        self.draw = ImageDraw.Draw(self.img)

    def rectangle(self, rect, fillColor, lineColor, lineSize):
        self.draw.rectangle(rect, fillColor, lineColor, lineSize)
        return

    def chord(self, rect, start, end, fillColor, lineColor, lineSize):
        self.draw.chord(rect, start, end, fillColor, 