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    <linearGradient id="ground" x1="0" y1="0" x2="0" y2="1">
      <stop offset="0" stop-color="#faf3e6"/>
      <stop offset="1" stop-color="#ecdcc2"/>
    </linearGradient>
  </defs>
  <rect x="0.5" y="0.5" width="63" height="63" rx="15.5" fill="url(#ground)" stroke="#d8c6a8"/>
  <!-- A quill mid-stroke, on paper. -->
  <path d="M50 10 C 34 14, 22 30, 18 46 C 26 40, 44 30, 50 10 Z" fill="#7c2d12"/>
  <path d="M50 10 C 40 22, 28 36, 18 46" stroke="#faf3e6" stroke-width="1.6" fill="none"/>
  <path d="M18 46 L13 55" stroke="#7c2d12" stroke-width="3" stroke-linecap="round"/>
  <path d="M22 56 C 30 53, 38 58, 50 54" stroke="#a8674a" stroke-width="2" fill="none"
        stroke-linecap="round" opacity="0.8"/>
</svg>