card-blur-dark.svg

<svg width="0" height="0">
  <defs>
    <filter id="glass-effect-dark" x="-50%" y="-50%" width="200%" height="200%">
      <feGaussianBlur in="SourceGraphic" stdDeviation="10" result="blur"/>
      <feComponentTransfer in="blur" result="opacityBlur">
        <feFuncA type="table" tableValues="0.4 0.6"/>
      </feComponentTransfer>
      <feBlend in="SourceGraphic" in2="opacityBlur" mode="normal"/>
    </filter>
  </defs>
</svg>