None:
            capLength = unit.size[0] / 2
        else:
            capLength = unit.capLength

        bevelLength = self.thickness * 2

        ctx.path(
            [
                (
                    unit.position[0],
                    unit.position[1] + unit.size[1] * self.startYFraction + bevelLength,
                ),
                (
                    unit.position[0] - self.thickness,
                    unit.position[1]
                    + unit.size[1] * self.startYFraction
      