frontend/src/app/icon.svg

<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100">
  <polygon points="50,5 95,27.5 95,72.5 50,95 5,72.5 5,27.5" fill="#1877F2" stroke="#0A58CA" stroke-width="2"/>
  <text x="50" y="68" font-family="Arial, sans-serif" font-size="55" font-weight="bold" fill="#ffffff" text-anchor="middle">V</text>
</svg>