.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="#B45309"/>
  <circle cx="64" cy="64" r="39" fill="#FFFFFF" stroke="#FDE68A" stroke-width="5"/>
  <path d="M75 52 67 70 49 78l8-18z" fill="#1E3A5F" stroke="#1E3A5F" stroke-width="4" stroke-linejoin="round"/>
  <circle cx="64" cy="64" r="5" fill="#F4C15D"/>
  <path d="M64 18v8M64 102v8M18 64h8M102 64h8" stroke="#FFFFFF" stroke-width="5" stroke-linecap="round"/>
</svg>