[Lens] Metric transparency setting not being fulfilled

[nicpenning]

Kibana version:
8.12.0-SNAPSHOT
Elasticsearch version:
8.12.0-SNAPSHOT
Server OS version:
N/A
Browser version:
Latest Edge
Browser OS version:
*N/A
Original install method (e.g. download page, yum, from source, etc.):
elastic-package stack up
Describe the bug:
It appears the transparency does not seem to work in the lens visualization when using the dynamic color settings

Steps to reproduce:

1. Create a lens visual
2. Add some field data
3. Adjust colors and set transparency to 0% and see that it does not change

Expected behavior:
I expect that once I set the transparency then the dashboard will acknowledge it.
Screenshots (if relevant):

Untitled.video.mp4

[elasticmachine]

Pinging @elastic/kibana-visualizations (Team:Visualizations)

[nickofthyme]

Thanks @nicpenning I think this is duplicate of #167636.

This will be fixed in #170914 thanks to elastic/elastic-charts#2184

[nicpenning]

Thank you!