Alert: This function’s access is marked private. This means it is not intended for use by plugin or theme developers, only in other core functions. It is listed here for completeness.


Adds default theme supports for block themes when the ‘setup_theme’ action fires.


See ‘setup_theme’.

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File: wp-includes/theme.php. View all references

function _add_default_theme_supports() {
	if ( ! wp_is_block_theme() ) {

	add_theme_support( 'post-thumbnails' );
	add_theme_support( 'responsive-embeds' );
	add_theme_support( 'editor-styles' );
	 * Makes block themes support HTML5 by default for the comment block and search form
	 * (which use default template functions) and `[caption]` and `[gallery]` shortcodes.
	 * Other blocks contain their own HTML5 markup.
	add_theme_support( 'html5', array( 'comment-form', 'comment-list', 'search-form', 'gallery', 'caption', 'style', 'script' ) );
	add_theme_support( 'automatic-feed-links' );

	add_filter( 'should_load_separate_core_block_assets', '__return_true' );

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Version Description
5.9.0 Introduced.

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