CSS contrast and inconsistencies in Tachyon flamegraph

[savannahostrowski]

Bug report

Playing around with Tachyon, I noticed that the coldest color in the flamegraph while in dark mode has insufficient contrast.

Additionally, light and dark mode currently have different gradients for cool → colder → coldest. Dark mode goes darker blue = colder, but light mode has it reversed.

Light mode

Dark mode

Linked PRs

• GH-142363: Contrast and gradient CSS fixes for Tachyon flamegraph #142364
• gh-142363: Improve Tachyon flamegraph contrast #142377

[StanFromIreland]

Triage: Can this be closed?

[hugovk]

Lighthouse finds a few other contrast things, I'll open a PR.

[hugovk]

#142377

[pablogsal]

Thanks @hugovk and @savannahostrowski