In https://commits.webkit.org/265239@main Nikolas suggested using different amplitudes per channel to make them more distinct in the output.
Pull request: https://github.com/WebKit/WebKit/pull/15053
Committed 265348@main (5b3a80e26316): <https://commits.webkit.org/265348@main> Reviewed commits have been landed. Closing PR #15053 and removing active labels.
<rdar://problem/111088590>