SVG - Support Polyline element

<svg xmlns="http://www.w3.org/2000/svg" width="200" height="100" viewBox="0 0 200 100">
  <polygon fill="#942425" stroke="blue" stroke-width="5" points="25 25 25 75 75 75 75 25"/>
  <polyline fill="#942425" stroke="blue" stroke-width="5" points="125 25 125 75 175 75 175 25"/>
</svg>

To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information