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