Why should you care?

MarkupVerse dashboards draw sparklines and gauges when SVG is too heavy.

See it live — copy this example

Save as demo.html and open in your browser, or use Run Example below.

<figure>
  <figcaption>Weekly signups — MarkupVerse SaaS</figcaption>
  <canvas id="spark" width="240" height="60" role="img" aria-label="Bar chart of signups"></canvas>
</figure>
<script>
const c = document.getElementById('spark').getContext('2d');
const bars = [12, 18, 9, 22, 30, 25, 40];
bars.forEach((v, i) => {
  c.fillStyle = '#2563eb';
  c.fillRect(i * 34 + 4, 60 - v, 28, v);
});
</script>

Run Example »

Edit the code below and click Run to see the result in Toolliyo’s live editor.

What happened?

• Set width/height attributes for resolution.
• Provide aria-label because canvas pixels are not semantic.

Practice next

1. Get 2d context.
2. Draw rects in a loop.
3. Add figcaption + aria-label.
4. Change bar colors per tenant.
5. Animate bars with requestAnimationFrame.

Remember

Bitmap drawing. JS-driven. Accessibility text required.

MarkupVerse signup sparkline

SaaS admin home shows a tiny chart.

Outcome: Trend visible without Chart.js.