wp_is_block_theme() WordPress Function

function wp_is_block_theme() {
	return wp_get_theme()->is_block_theme();
}
Uses	Description
wp-includes/class-wp-theme.php:WP_Theme::is_block_theme()	Returns whether this theme is a block-based theme or not.
wp-includes/theme.php:wp_get_theme()	Gets a WP_Theme object for a theme.
Used By	Description
wp-includes/script-loader.php:wp_enqueue_block_support_styles()	This function takes care of adding inline styles in the proper place, depending on the theme in use.
wp-includes/theme.php:_add_default_theme_supports()	Adds default theme supports for block themes when the ‘setup_theme’ action fires.
wp-includes/admin-bar.php:wp_admin_bar_edit_site_menu()	Adds the “Edit site” link to the Toolbar.
wp-admin/menu.php:_add_plugin_file_editor_to_tools()	Adds the ‘Plugin File Editor’ menu item after the ‘Themes File Editor’ in Tools for block themes.
wp-includes/theme-templates.php:wp_enable_block_templates()	Enables the block templates (editor mode) for themes with theme.json by default.
wp-includes/script-loader.php:wp_enqueue_global_styles()	Enqueues the global styles defined via theme.json.
wp-includes/admin-bar.php:wp_admin_bar_customize_menu()	Adds the “Customize” link to the Toolbar.
wp-admin/includes/dashboard.php:wp_welcome_panel()	Displays a welcome panel to introduce users to WordPress.
wp-admin/menu.php:_add_themes_utility_last()	Adds the ‘Theme File Editor’ menu item to the bottom of the Appearance (non-block themes) or Tools (block themes) menu.
wp-includes/functions.php:wp_widgets_add_menu()	Append the Widgets menu to the themes main menu.