Gallery Block: Allow Caption Background Customizations

[mxhassani]

What

Allow the option to customize how captions are displayed on the Gallery Block

Why

Currently, it is only possible to change the text, and highlight it as a way to customize it, but there isn't a direct way to change the background of the caption element.
Some themes add styles like blurry or colored backgrounds and users don't have a way to change that, other than custom CSS.

How

Controls can be added to the toolbar

But adding them to the sidebar settings of the Gallery block and/or the image blocks can be a fitting solution too.

Options could be: background styles and caption alignment (over image/below it - left right ...)

As a workaround, there is this CSS code (Works with theme Tenku):

/* Remove blur effect from captions */
.wp-block-gallery.has-nested-images figure.wp-block-image:has(figcaption)::before {
  display: none;
}

8629501-zen

[github-actions]

Support References

This comment is automatically generated. Please do not edit it.

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[Robertght]

Another request in 8669191-zen

[Robertght]

8673244-zen

[Robertght]

8673583-zen

[hacchism]

8670196-zen

[khristiansnyder]

8674925-zen

[hacchism]

8799911-zen

[jartes]

Another case here: 8797788-zd-a8c

[jartes]

I'm self-assigning this one as I asked how to proceed for this one. Slack: p1732275243129649-slack-C07H21B2W59

[jartes]

Reported in Core here: WordPress/gutenberg#67249

[supernovia]

9024356-zen

[nazilya06]

Another request here: 9133659-zd-a8c

[hacchism]

Another report: 9174360-zd-a8c

[khristiansnyder]

Another report: 9310735-zen

It would be awesome to let users customize that to their liking.

[ktyfuller604]

Another report: 9305130-zd-a8c

Provided them with the CSS workaround.