Fix: Calendar header styles inconsistency in Twenty Twenty theme

[NidhiDhandhukiya74]

Trac ticket
Trac ticket: https://core.trac.wordpress.org/ticket/62781

I have addressed the issue and created a new PR to ensure the following:

1. The default font weight for the caption is set to 600 in both the editor and front end.
2. The Typography > Appearance option now correctly adjusts the font weight of the caption in both the editor and front.

[github-actions]

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[github-actions]

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[sabernhardt]

I suggested some changes to simplify the style rules and to fix the spacing (tabs and empty lines).

I'm still unsure whether inheriting the custom font-weight is best, but that discussion belongs on the ticket.

[sabernhardt]

Suggested change

	.editor-styles-wrapper .wp-calendar-table caption {
	padding: 0.5em;
	font-weight: 600;
	}
	:root .editor-styles-wrapper :where(.wp-block-calendar[style*="font-weight"]) caption,
	:root .editor-styles-wrapper :where(.wp-block-calendar *[style*="font-weight"]) ~ caption {
	font-weight: inherit;
	}
	.editor-styles-wrapper caption {
	padding: 0.5em;
	font-weight: 600;
	}
	.editor-styles-wrapper :where(.wp-block-calendar[style*="font-weight"]) caption {
	font-weight: inherit;
	}

The front-end styles add the padding and font weight to any caption element, so I would not restrict it to one block in the editor. However, adjusting for a custom font weight can be focused on the Calendar block (the standard Table block does not use the caption element).

[sabernhardt]

Suggested change

	:root :where(.wp-block-calendar[style*="font-weight"]) caption,
	:root :where(.wp-block-calendar *[style*="font-weight"]) ~ caption {
	font-weight: inherit;
	}
	.wp-calendar-nav .wp-calendar-nav-prev {
	font-family: "Inter var", -apple-system, BlinkMacSystemFont, "Helvetica Neue", Helvetica, sans-serif;
	}
	:where(.wp-block-calendar[style*="font-weight"]) caption {
	font-weight: inherit;
	}

This section can be simpler:

1. The caption only needs the specificity of one element to override the theme's default 600 font weight.
2. The :where(.wp-block-calendar *[style*="font-weight"]) ~ caption selector would not match any elements because the Calendar caption does not have siblings before it.
3. Instead of rewriting the "Inter var" font list in this section, you could add .entry-content .wp-block-calendar (between archives and categories) in two lists of block selectors plus the PHP array. Then the font would apply to both the previous and next months' links.