Just read a great blog post about a svg sparkline chart and this code;
is working on dashboard perfectly with a template node
<svg height="180px" width="500px" viewBox="0 0 9 15" preserveAspectRatio="none">
<path
d="M 0 14 L 1 15 L 2 10 L 3 11 L 4 7 L 5 5 L 6 0 L 7 5 L 8 10 L 9 11 L 9 15 L 0 15 Z"
stroke="transparent"
fill="pink"
/>
<path
d="M 0 14 L 1 15 L 2 10 L 3 11 L 4 7 L 5 5 L 6 0 L 7 5 L 8 10 L 9 11"
stroke-width="2"
stroke="red"
fill="transparent"
vector-effect="non-scaling-stroke"
/>
</svg>
is working on dashboard perfectly with a template node
here is the blog post I just talk about.
more compact without a fill
<svg height="180px" width="500px" viewBox="0 0 9 15" preserveAspectRatio="none">
<path
d="M 0 14 L 1 15 L 2 10 L 3 11 L 4 7 L 5 5 L 6 0 L 7 5 L 8 10 L 9 11"
stroke-width="2"
stroke="red"
fill="transparent"
vector-effect="non-scaling-stroke"
/>
</svg>