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Co-authored-by: t-hamano <wildworks@git.wordpress.org>
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Could someone please take a look at this pull request? 🙂

It's been about a month.
The color of block supports can be set to alpha color.
I'd like to get some design feedback and move forward.

Color	Background

I'd like to get some design feedback and move forward.

What design feedback is exactly needed?
I think this looks visually fine.

@shimotmk, can you rebase this on the latest trunk?

I agree with @hanneslsm. I don't think design feedback is needed here; the color picker UI is standardized across the editor.

@Mamaduka
Thank you.

I rebased the latest trunk.

Thank you for your review!🙌

Thanks for contributing, @shimotmk!