.codex-plugin/assets/composer-icon.svg

<svg xmlns="http://www.w3.org/2000/svg" width="128" height="128" viewBox="0 0 128 128">
  <rect width="128" height="128" rx="24" fill="#3A5A40"/>
  <g stroke-linecap="round" stroke-linejoin="round">
  <rect x="26" y="42" width="76" height="54" rx="8" fill="#FFFFFF"/>
  <path d="M48 42V32h32v10M26 64h76" fill="none" stroke="#F4C15D" stroke-width="7"/>
  <rect x="57" y="58" width="14" height="14" rx="3" fill="#3A5A40"/>
  </g>
</svg>