ith-bias05" filterUnits="objectBoundingBox" x="0%" y="0%" width="100%" height="100%">
        <feConvolveMatrix kernelMatrix="1 1 1 1 -7 1 1 1 1" preserveAlpha="false" bias="0.5"/>
      </filter>
      <filter id="convolve-with-bias1" filterUnits="objectBoundingBox" x="0%" y="0%" width="100%" height="100%">
        <feConvolveMatrix kernelMatrix="1 1 1 1 -7 1 1 1 1" preserveAlpha="false" bias="1"/>
      </filter>

      <linearGradient id="test_linear_gradient" gradientUnits="objectBoundingBox" x1="0" x2=