x/website: dark background of images in chacha8rand blog post

[Deleplace]

Go version

N/A

Output of go env in your module/workspace:

N/A

What did you do?

https://go.dev/blog/chacha8rand#performance

What did you see happen?

What did you expect to see?

Better contrast in the 7 SVG images:

• either light color over dark background (best)
• or dark color over light background

[Deleplace]

Observed in (Chrome, macOS) and (Firefox, macOS)

[cherrymui]

cc @rsc @FiloSottile @golang/tools-team

[mauri870]

Looks like it is fixed by CL 583835, so closing.

[Deleplace]

Yes, I confirm :)