template/app/frontend/images/example.svg
<svg width="180" height="180" viewBox="0 0 180 180" fill="none" xmlns="http://www.w3.org/2000/svg">
<rect x="2" y="2" width="176" height="176" rx="6" fill="white" stroke="#CCCCCC" stroke-width="4" stroke-miterlimit="0" stroke-linecap="round"/>
</svg>