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ColorPalette: Show checkered background through semi-transparent colors #47476

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@brookewp brookewp commented Jan 27, 2023

What?

Fix #42715

This PR addresses the above issue for ColorPalette, to make it possible to see the color being selected regardless of the set transparency.

This change also highlights an existing issue where when transparency is adjusted, the text becomes inaccessible due to low contrast.

In the below screencasts, 'what it should look like' is based on the solution proposed here: #47373, which isn't included in this PR. Therefore, there's another screencast to show how the change in this PR differs from that and the current state in trunk.

Why?

To improve the UX by showing a preview of the selected color value regardless of transparency.

How?

By adding a class to the parent component and moving the background styles onto that so it is behind the selected custom color.

Testing Instructions

  1. Look for ColorPalette in storybook or a block with color options (i.e. button) in the block editor
  2. Change the transparency of the color to see checkered background show through the selected color preview
  3. After ColorPalette: Ensure text label contrast checking works with CSS variables #47373 is merged, check that the text is accessible over the preview

Screenshots or screencast '

Current behaviour Changes in this PR
Screen.Recording.2023-01-26.at.4.mp4
Screen.Recording.2023-01-26.at.4.2.mp4
What it should look like
Screen.Recording.2023-01-26.at.4.1.mp4

@brookewp brookewp added [Type] Enhancement A suggestion for improvement. [Package] Components /packages/components [a11y] Color Contrast labels Jan 27, 2023
@brookewp brookewp self-assigned this Jan 27, 2023
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github-actions bot commented Jan 27, 2023

Size Change: +32 B (0%)

Total Size: 1.31 MB

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compressed-size-action

@brookewp brookewp force-pushed the update/colorpalette-background branch from 98d0642 to d36ff24 Compare January 31, 2023 00:32
@brookewp brookewp marked this pull request as ready for review January 31, 2023 04:09
@ciampo ciampo requested review from ciampo and mirka February 1, 2023 17:43
@ciampo
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ciampo commented Feb 1, 2023

Thank you Brooke for working on this!

It definitely looks like an improvement over the current situation, although @mirka 's comment in a related PR makes me wonder — should we look at solving these UX / a11y issues at the design level (e.g by moving the text outside of the swatch) ?

@brookewp
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should we look at solving these UX / a11y issues at the design level (e.g by moving the text outside of the swatch) ?

Ah, this makes sense! So outside of the swatch, like the below example?

Screenshot 2023-02-09 at 10 55 23 PM

(But of course getting design involved to make the design on how it looks)

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ciampo commented Feb 10, 2023

Ah, this makes sense! So outside of the swatch, like the below example?

That could definitely be one way!

(But of course getting design involved to make the design on how it looks)

Yup! Next steps could be:

  • close this PR since we'll likely adopt a different approach
  • open a new issue in which we explain the situation, and we propose the solution highlighted by Lena. We could then ping design folks and discuss an approach!

What do you think about this plan?

@brookewp
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Next steps could be:
close this PR since we'll likely adopt a different approach
open a new issue in which we explain the situation, and we propose the solution highlighted by Lena. We could then ping design folks and discuss an approach!
What do you think about this plan?

Sounds great! Thank you!

@brookewp brookewp closed this Feb 14, 2023
@priethor priethor added [Focus] Accessibility (a11y) Changes that impact accessibility and need corresponding review (e.g. markup changes). and removed [a11y] Color Contrast labels Jul 24, 2023
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ColorPalette: Allow checkered pattern to show through for semi-transparent colors
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