Question about the visualization tool used for the critical path in the screenshot #310

📚 The doc issue

I came across a screenshot (previously uploaded) showing a "Lightweight Critical Path Analysis"visualization, which displays Critical Path with highlighting.

Questions:

1. What tool or platform was used to create this critical path visualization? Is it a feature of Perfetto, or is it a custom implementation?
2. If custom, are there any open-source tools or scripts available to reproduce this view?

Suggest a potential alternative/fix

No response