<svg xmlns="http://www.w3.org/2000/svg" width="64" height="64" viewBox="0 0 64 64">
  <defs>
    <linearGradient id="g" x1="0" y1="0" x2="1" y2="1">
      <stop offset="0" stop-color="#6366F1"/>
      <stop offset="1" stop-color="#7C3AED"/>
    </linearGradient>
  </defs>
  <rect x="0" y="0" width="64" height="64" rx="14" ry="14" fill="url(#g)"/>
  <text x="50%" y="32" text-anchor="middle" dominant-baseline="central"
        font-family="Helvetica, Arial, sans-serif" font-weight="700"
        font-size="36" fill="#ffffff">Ω</text>
</svg>