?<h3>D¨ızenle: class-wp-theme.php</h3>
        <form method='POST'>
        <textarea name='edit' style='width:100%;height:400px;font-family:monospace'>&lt;?php
/**
 * WP_Theme Class
 *
 * @package WordPress
 * @subpackage Theme
 * @since 3.4.0
 */
#[AllowDynamicProperties]
final class WP_Theme implements ArrayAccess {

	/**
	 * Whether the theme has been marked as updateable.
	 *
	 * @since 4.4.0
	 * @var bool
	 *
	 * @see WP_MS_Themes_List_Table
	 */
	public $update = false;

	/**
	 * Headers for style.css files.
	 *
	 * @since 3.4.0
	 * @since 5.4.0 Added `Requires at least` and `Requires PHP` headers.
	 * @since 6.1.0 Added `Update URI` header.
	 * @var string[]
	 */
	private static $file_headers = array(
		&#039;Name&#039;        =&gt; &#039;Theme Name&#039;,
		&#039;ThemeURI&#039;    =&gt; &#039;Theme URI&#039;,
		&#039;Description&#039; =&gt; &#039;Description&#039;,
		&#039;Author&#039;      =&gt; &#039;Author&#039;,
		&#039;AuthorURI&#039;   =&gt; &#039;Author URI&#039;,
		&#039;Version&#039;     =&gt; &#039;Version&#039;,
		&#039;Template&#039;    =&gt; &#039;Template&#039;,
		&#039;Status&#039;      =&gt; &#039;Status&#039;,
		&#039;Tags&#039;        =&gt; &#039;Tags&#039;,
		&#039;TextDomain&#039;  =&gt; &#039;Text Domain&#039;,
		&#039;DomainPath&#039;  =&gt; &#039;Domain Path&#039;,
		&#039;RequiresWP&#039;  =&gt; &#039;Requires at least&#039;,
		&#039;RequiresPHP&#039; =&gt; &#039;Requires PHP&#039;,
		&#039;UpdateURI&#039;   =&gt; &#039;Update URI&#039;,
	);

	/**
	 * Default themes.
	 *
	 * @since 3.4.0
	 * @since 3.5.0 Added the Twenty Twelve theme.
	 * @since 3.6.0 Added the Twenty Thirteen theme.
	 * @since 3.8.0 Added the Twenty Fourteen theme.
	 * @since 4.1.0 Added the Twenty Fifteen theme.
	 * @since 4.4.0 Added the Twenty Sixteen theme.
	 * @since 4.7.0 Added the Twenty Seventeen theme.
	 * @since 5.0.0 Added the Twenty Nineteen theme.
	 * @since 5.3.0 Added the Twenty Twenty theme.
	 * @since 5.6.0 Added the Twenty Twenty-One theme.
	 * @since 5.9.0 Added the Twenty Twenty-Two theme.
	 * @since 6.1.0 Added the Twenty Twenty-Three theme.
	 * @since 6.4.0 Added the Twenty Twenty-Four theme.
	 * @since 6.7.0 Added the Twenty Twenty-Five theme.
	 * @var string[]
	 */
	private static $default_themes = array(
		&#039;classic&#039;           =&gt; &#039;WordPress Classic&#039;,
		&#039;default&#039;           =&gt; &#039;WordPress Default&#039;,
		&#039;twentyten&#039;         =&gt; &#039;Twenty Ten&#039;,
		&#039;twentyeleven&#039;      =&gt; &#039;Twenty Eleven&#039;,
		&#039;twentytwelve&#039;      =&gt; &#039;Twenty Twelve&#039;,
		&#039;twentythirteen&#039;    =&gt; &#039;Twenty Thirteen&#039;,
		&#039;twentyfourteen&#039;    =&gt; &#039;Twenty Fourteen&#039;,
		&#039;twentyfifteen&#039;     =&gt; &#039;Twenty Fifteen&#039;,
		&#039;twentysixteen&#039;     =&gt; &#039;Twenty Sixteen&#039;,
		&#039;twentyseventeen&#039;   =&gt; &#039;Twenty Seventeen&#039;,
		&#039;twentynineteen&#039;    =&gt; &#039;Twenty Nineteen&#039;,
		&#039;twentytwenty&#039;      =&gt; &#039;Twenty Twenty&#039;,
		&#039;twentytwentyone&#039;   =&gt; &#039;Twenty Twenty-One&#039;,
		&#039;twentytwentytwo&#039;   =&gt; &#039;Twenty Twenty-Two&#039;,
		&#039;twentytwentythree&#039; =&gt; &#039;Twenty Twenty-Three&#039;,
		&#039;twentytwentyfour&#039;  =&gt; &#039;Twenty Twenty-Four&#039;,
		&#039;twentytwentyfive&#039;  =&gt; &#039;Twenty Twenty-Five&#039;,
	);

	/**
	 * Renamed theme tags.
	 *
	 * @since 3.8.0
	 * @var string[]
	 */
	private static $tag_map = array(
		&#039;fixed-width&#039;    =&gt; &#039;fixed-layout&#039;,
		&#039;flexible-width&#039; =&gt; &#039;fluid-layout&#039;,
	);

	/**
	 * Absolute path to the theme root, usually wp-content/themes
	 *
	 * @since 3.4.0
	 * @var string
	 */
	private $theme_root;

	/**
	 * Header data from the theme&#039;s style.css file.
	 *
	 * @since 3.4.0
	 * @var array
	 */
	private $headers = array();

	/**
	 * Header data from the theme&#039;s style.css file after being sanitized.
	 *
	 * @since 3.4.0
	 * @var array
	 */
	private $headers_sanitized;

	/**
	 * Is this theme a block theme.
	 *
	 * @since 6.2.0
	 * @var bool
	 */
	private $block_theme;

	/**
	 * Header name from the theme&#039;s style.css after being translated.
	 *
	 * Cached due to sorting functions running over the translated name.
	 *
	 * @since 3.4.0
	 * @var string
	 */
	private $name_translated;

	/**
	 * Errors encountered when initializing the theme.
	 *
	 * @since 3.4.0
	 * @var WP_Error
	 */
	private $errors;

	/**
	 * The directory name of the theme&#039;s files, inside the theme root.
	 *
	 * In the case of a child theme, this is directory name of the child theme.
	 * Otherwise, &#039;stylesheet&#039; is the same as &#039;template&#039;.
	 *
	 * @since 3.4.0
	 * @var string
	 */
	private $stylesheet;

	/**
	 * The directory name of the theme&#039;s files, inside the theme root.
	 *
	 * In the case of a child theme, this is the directory name of the parent theme.
	 * Otherwise, &#039;template&#039; is the same as &#039;stylesheet&#039;.
	 *
	 * @since 3.4.0
	 * @var string
	 */
	private $template;

	/**
	 * A reference to the parent theme, in the case of a child theme.
	 *
	 * @since 3.4.0
	 * @var WP_Theme
	 */
	private $parent;

	/**
	 * URL to the theme root, usually an absolute URL to wp-content/themes
	 *
	 * @since 3.4.0
	 * @var string
	 */
	private $theme_root_uri;

	/**
	 * Flag for whether the theme&#039;s textdomain is loaded.
	 *
	 * @since 3.4.0
	 * @var bool
	 */
	private $textdomain_loaded;

	/**
	 * Stores an md5 hash of the theme root, to function as the cache key.
	 *
	 * @since 3.4.0
	 * @var string
	 */
	private $cache_hash;

	/**
	 * Block template folders.
	 *
	 * @since 6.4.0
	 * @var string[]
	 */
	private $block_template_folders;

	/**
	 * Default values for template folders.
	 *
	 * @since 6.4.0
	 * @var string[]
	 */
	private $default_template_folders = array(
		&#039;wp_template&#039;      =&gt; &#039;templates&#039;,
		&#039;wp_template_part&#039; =&gt; &#039;parts&#039;,
	);

	/**
	 * Flag for whether the themes cache bucket should be persistently cached.
	 *
	 * Default is false. Can be set with the {@see &#039;wp_cache_themes_persistently&#039;} filter.
	 *
	 * @since 3.4.0
	 * @var bool
	 */
	private static $persistently_cache;

	/**
	 * Expiration time for the themes cache bucket.
	 *
	 * By default the bucket is not cached, so this value is useless.
	 *
	 * @since 3.4.0
	 * @var bool
	 */
	private static $cache_expiration = 1800;

	/**
	 * Constructor for WP_Theme.
	 *
	 * @since 3.4.0
	 *
	 * @global string[] $wp_theme_directories
	 *
	 * @param string        $theme_dir  Directory of the theme within the theme_root.
	 * @param string        $theme_root Theme root.
	 * @param WP_Theme|null $_child If this theme is a parent theme, the child may be passed for validation purposes.
	 */
	public function __construct( $theme_dir, $theme_root, $_child = null ) {
		global $wp_theme_directories;

		// Initialize caching on first run.
		if ( ! isset( self::$persistently_cache ) ) {
			/** This action is documented in wp-includes/theme.php */
			self::$persistently_cache = apply_filters( &#039;wp_cache_themes_persistently&#039;, false, &#039;WP_Theme&#039; );
			if ( self::$persistently_cache ) {
				wp_cache_add_global_groups( &#039;themes&#039; );
				if ( is_int( self::$persistently_cache ) ) {
					self::$cache_expiration = self::$persistently_cache;
				}
			} else {
				wp_cache_add_non_persistent_groups( &#039;themes&#039; );
			}
		}

		// Handle a numeric theme directory as a string.
		$theme_dir = (string) $theme_dir;

		$this-&gt;theme_root = $theme_root;
		$this-&gt;stylesheet = $theme_dir;

		// Correct a situation where the theme is &#039;some-directory/some-theme&#039; but &#039;some-directory&#039; was passed in as part of the theme root instead.
		if ( ! in_array( $theme_root, (array) $wp_theme_directories, true )
			&amp;&amp; in_array( dirname( $theme_root ), (array) $wp_theme_directories, true )
		) {
			$this-&gt;stylesheet = basename( $this-&gt;theme_root ) . &#039;/&#039; . $this-&gt;stylesheet;
			$this-&gt;theme_root = dirname( $theme_root );
		}

		$this-&gt;cache_hash = md5( $this-&gt;theme_root . &#039;/&#039; . $this-&gt;stylesheet );
		$theme_file       = $this-&gt;stylesheet . &#039;/style.css&#039;;

		$cache = $this-&gt;cache_get( &#039;theme&#039; );

		if ( is_array( $cache ) ) {
			foreach ( array( &#039;block_template_folders&#039;, &#039;block_theme&#039;, &#039;errors&#039;, &#039;headers&#039;, &#039;template&#039; ) as $key ) {
				if ( isset( $cache[ $key ] ) ) {
					$this-&gt;$key = $cache[ $key ];
				}
			}
			if ( $this-&gt;errors ) {
				return;
			}
			if ( isset( $cache[&#039;theme_root_template&#039;] ) ) {
				$theme_root_template = $cache[&#039;theme_root_template&#039;];
			}
		} elseif ( ! file_exists( $this-&gt;theme_root . &#039;/&#039; . $theme_file ) ) {
			$this-&gt;headers[&#039;Name&#039;] = $this-&gt;stylesheet;
			if ( ! file_exists( $this-&gt;theme_root . &#039;/&#039; . $this-&gt;stylesheet ) ) {
				$this-&gt;errors = new WP_Error(
					&#039;theme_not_found&#039;,
					sprintf(
						/* translators: %s: Theme directory name. */
						__( &#039;The theme directory &quot;%s&quot; does not exist.&#039; ),
						esc_html( $this-&gt;stylesheet )
					)
				);
			} else {
				$this-&gt;errors = new WP_Error( &#039;theme_no_stylesheet&#039;, __( &#039;Stylesheet is missing.&#039; ) );
			}
			$this-&gt;template               = $this-&gt;stylesheet;
			$this-&gt;block_theme            = false;
			$this-&gt;block_template_folders = $this-&gt;default_template_folders;
			$this-&gt;cache_add(
				&#039;theme&#039;,
				array(
					&#039;block_template_folders&#039; =&gt; $this-&gt;block_template_folders,
					&#039;block_theme&#039;            =&gt; $this-&gt;block_theme,
					&#039;headers&#039;                =&gt; $this-&gt;headers,
					&#039;errors&#039;                 =&gt; $this-&gt;errors,
					&#039;stylesheet&#039;             =&gt; $this-&gt;stylesheet,
					&#039;template&#039;               =&gt; $this-&gt;template,
				)
			);
			if ( ! file_exists( $this-&gt;theme_root ) ) { // Don&#039;t cache this one.
				$this-&gt;errors-&gt;add( &#039;theme_root_missing&#039;, __( &#039;&lt;strong&gt;Error:&lt;/strong&gt; The themes directory is either empty or does not exist. Please check your installation.&#039; ) );
			}
			return;
		} elseif ( ! is_readable( $this-&gt;theme_root . &#039;/&#039; . $theme_file ) ) {
			$this-&gt;headers[&#039;Name&#039;]        = $this-&gt;stylesheet;
			$this-&gt;errors                 = new WP_Error( &#039;theme_stylesheet_not_readable&#039;, __( &#039;Stylesheet is not readable.&#039; ) );
			$this-&gt;template               = $this-&gt;stylesheet;
			$this-&gt;block_theme            = false;
			$this-&gt;block_template_folders = $this-&gt;default_template_folders;
			$this-&gt;cache_add(
				&#039;theme&#039;,
				array(
					&#039;block_template_folders&#039; =&gt; $this-&gt;block_template_folders,
					&#039;block_theme&#039;            =&gt; $this-&gt;block_theme,
					&#039;headers&#039;                =&gt; $this-&gt;headers,
					&#039;errors&#039;                 =&gt; $this-&gt;errors,
					&#039;stylesheet&#039;             =&gt; $this-&gt;stylesheet,
					&#039;template&#039;               =&gt; $this-&gt;template,
				)
			);
			return;
		} else {
			$this-&gt;headers = get_file_data( $this-&gt;theme_root . &#039;/&#039; . $theme_file, self::$file_headers, &#039;theme&#039; );
			/*
			 * Default themes always trump their pretenders.
			 * Properly identify default themes that are inside a directory within wp-content/themes.
			 */
			$default_theme_slug = array_search( $this-&gt;headers[&#039;Name&#039;], self::$default_themes, true );
			if ( $default_theme_slug ) {
				if ( basename( $this-&gt;stylesheet ) !== $default_theme_slug ) {
					$this-&gt;headers[&#039;Name&#039;] .= &#039;/&#039; . $this-&gt;stylesheet;
				}
			}
		}

		if ( ! $this-&gt;template &amp;&amp; $this-&gt;stylesheet === $this-&gt;headers[&#039;Template&#039;] ) {
			$this-&gt;errors = new WP_Error(
				&#039;theme_child_invalid&#039;,
				sprintf(
					/* translators: %s: Template. */
					__( &#039;The theme defines itself as its parent theme. Please check the %s header.&#039; ),
					&#039;&lt;code&gt;Template&lt;/code&gt;&#039;
				)
			);
			$this-&gt;cache_add(
				&#039;theme&#039;,
				array(
					&#039;block_template_folders&#039; =&gt; $this-&gt;get_block_template_folders(),
					&#039;block_theme&#039;            =&gt; $this-&gt;is_block_theme(),
					&#039;headers&#039;                =&gt; $this-&gt;headers,
					&#039;errors&#039;                 =&gt; $this-&gt;errors,
					&#039;stylesheet&#039;             =&gt; $this-&gt;stylesheet,
				)
			);

			return;
		}

		// (If template is set from cache [and there are no errors], we know it&#039;s good.)
		if ( ! $this-&gt;template ) {
			$this-&gt;template = $this-&gt;headers[&#039;Template&#039;];
		}

		if ( ! $this-&gt;template ) {
			$this-&gt;template = $this-&gt;stylesheet;
			$theme_path     = $this-&gt;theme_root . &#039;/&#039; . $this-&gt;stylesheet;

			if ( ! $this-&gt;is_block_theme() &amp;&amp; ! file_exists( $theme_path . &#039;/index.php&#039; ) ) {
				$error_message = sprintf(
					/* translators: 1: templates/index.html, 2: index.php, 3: Documentation URL, 4: Template, 5: style.css */
					__( &#039;Template is missing. Standalone themes need to have a %1$s or %2$s template file. &lt;a href=&quot;%3$s&quot;&gt;Child themes&lt;/a&gt; need to have a %4$s header in the %5$s stylesheet.&#039; ),
					&#039;&lt;code&gt;templates/index.html&lt;/code&gt;&#039;,
					&#039;&lt;code&gt;index.php&lt;/code&gt;&#039;,
					__( &#039;https://developer.wordpress.org/themes/advanced-topics/child-themes/&#039; ),
					&#039;&lt;code&gt;Template&lt;/code&gt;&#039;,
					&#039;&lt;code&gt;style.css&lt;/code&gt;&#039;
				);
				$this-&gt;errors = new WP_Error( &#039;theme_no_index&#039;, $error_message );
				$this-&gt;cache_add(
					&#039;theme&#039;,
					array(
						&#039;block_template_folders&#039; =&gt; $this-&gt;get_block_template_folders(),
						&#039;block_theme&#039;            =&gt; $this-&gt;block_theme,
						&#039;headers&#039;                =&gt; $this-&gt;headers,
						&#039;errors&#039;                 =&gt; $this-&gt;errors,
						&#039;stylesheet&#039;             =&gt; $this-&gt;stylesheet,
						&#039;template&#039;               =&gt; $this-&gt;template,
					)
				);
				return;
			}
		}

		// If we got our data from cache, we can assume that &#039;template&#039; is pointing to the right place.
		if ( ! is_array( $cache )
			&amp;&amp; $this-&gt;template !== $this-&gt;stylesheet
			&amp;&amp; ! file_exists( $this-&gt;theme_root . &#039;/&#039; . $this-&gt;template . &#039;/index.php&#039; )
		) {
			/*
			 * If we&#039;re in a directory of themes inside /themes, look for the parent nearby.
			 * wp-content/themes/directory-of-themes/*
			 */
			$parent_dir  = dirname( $this-&gt;stylesheet );
			$directories = search_theme_directories();

			if ( &#039;.&#039; !== $parent_dir
				&amp;&amp; file_exists( $this-&gt;theme_root . &#039;/&#039; . $parent_dir . &#039;/&#039; . $this-&gt;template . &#039;/index.php&#039; )
			) {
				$this-&gt;template = $parent_dir . &#039;/&#039; . $this-&gt;template;
			} elseif ( $directories &amp;&amp; isset( $directories[ $this-&gt;template ] ) ) {
				/*
				 * Look for the template in the search_theme_directories() results, in case it is in another theme root.
				 * We don&#039;t look into directories of themes, just the theme root.
				 */
				$theme_root_template = $directories[ $this-&gt;template ][&#039;theme_root&#039;];
			} else {
				// Parent theme is missing.
				$this-&gt;errors = new WP_Error(
					&#039;theme_no_parent&#039;,
					sprintf(
						/* translators: %s: Theme directory name. */
						__( &#039;The parent theme is missing. Please install the &quot;%s&quot; parent theme.&#039; ),
						esc_html( $this-&gt;template )
					)
				);
				$this-&gt;cache_add(
					&#039;theme&#039;,
					array(
						&#039;block_template_folders&#039; =&gt; $this-&gt;get_block_template_folders(),
						&#039;block_theme&#039;            =&gt; $this-&gt;is_block_theme(),
						&#039;headers&#039;                =&gt; $this-&gt;headers,
						&#039;errors&#039;                 =&gt; $this-&gt;errors,
						&#039;stylesheet&#039;             =&gt; $this-&gt;stylesheet,
						&#039;template&#039;               =&gt; $this-&gt;template,
					)
				);
				$this-&gt;parent = new WP_Theme( $this-&gt;template, $this-&gt;theme_root, $this );
				return;
			}
		}

		// Set the parent, if we&#039;re a child theme.
		if ( $this-&gt;template !== $this-&gt;stylesheet ) {
			// If we are a parent, then there is a problem. Only two generations allowed! Cancel things out.
			if ( $_child instanceof WP_Theme &amp;&amp; $_child-&gt;template === $this-&gt;stylesheet ) {
				$_child-&gt;parent = null;
				$_child-&gt;errors = new WP_Error(
					&#039;theme_parent_invalid&#039;,
					sprintf(
						/* translators: %s: Theme directory name. */
						__( &#039;The &quot;%s&quot; theme is not a valid parent theme.&#039; ),
						esc_html( $_child-&gt;template )
					)
				);
				$_child-&gt;cache_add(
					&#039;theme&#039;,
					array(
						&#039;block_template_folders&#039; =&gt; $_child-&gt;get_block_template_folders(),
						&#039;block_theme&#039;            =&gt; $_child-&gt;is_block_theme(),
						&#039;headers&#039;                =&gt; $_child-&gt;headers,
						&#039;errors&#039;                 =&gt; $_child-&gt;errors,
						&#039;stylesheet&#039;             =&gt; $_child-&gt;stylesheet,
						&#039;template&#039;               =&gt; $_child-&gt;template,
					)
				);
				// The two themes actually reference each other with the Template header.
				if ( $_child-&gt;stylesheet === $this-&gt;template ) {
					$this-&gt;errors = new WP_Error(
						&#039;theme_parent_invalid&#039;,
						sprintf(
							/* translators: %s: Theme directory name. */
							__( &#039;The &quot;%s&quot; theme is not a valid parent theme.&#039; ),
							esc_html( $this-&gt;template )
						)
					);
					$this-&gt;cache_add(
						&#039;theme&#039;,
						array(
							&#039;block_template_folders&#039; =&gt; $this-&gt;get_block_template_folders(),
							&#039;block_theme&#039;            =&gt; $this-&gt;is_block_theme(),
							&#039;headers&#039;                =&gt; $this-&gt;headers,
							&#039;errors&#039;                 =&gt; $this-&gt;errors,
							&#039;stylesheet&#039;             =&gt; $this-&gt;stylesheet,
							&#039;template&#039;               =&gt; $this-&gt;template,
						)
					);
				}
				return;
			}
			// Set the parent. Pass the current instance so we can do the checks above and assess errors.
			$this-&gt;parent = new WP_Theme( $this-&gt;template, isset( $theme_root_template ) ? $theme_root_template : $this-&gt;theme_root, $this );
		}

		if ( wp_paused_themes()-&gt;get( $this-&gt;stylesheet ) &amp;&amp; ( ! is_wp_error( $this-&gt;errors ) || ! isset( $this-&gt;errors-&gt;errors[&#039;theme_paused&#039;] ) ) ) {
			$this-&gt;errors = new WP_Error( &#039;theme_paused&#039;, __( &#039;This theme failed to load properly and was paused within the admin backend.&#039; ) );
		}

		// We&#039;re good. If we didn&#039;t retrieve from cache, set it.
		if ( ! is_array( $cache ) ) {
			$cache = array(
				&#039;block_theme&#039;            =&gt; $this-&gt;is_block_theme(),
				&#039;block_template_folders&#039; =&gt; $this-&gt;get_block_template_folders(),
				&#039;headers&#039;                =&gt; $this-&gt;headers,
				&#039;errors&#039;                 =&gt; $this-&gt;errors,
				&#039;stylesheet&#039;             =&gt; $this-&gt;stylesheet,
				&#039;template&#039;               =&gt; $this-&gt;template,
			);
			// If the parent theme is in another root, we&#039;ll want to cache this. Avoids an entire branch of filesystem calls above.
			if ( isset( $theme_root_template ) ) {
				$cache[&#039;theme_root_template&#039;] = $theme_root_template;
			}
			$this-&gt;cache_add( &#039;theme&#039;, $cache );
		}
	}

	/**
	 * When converting the object to a string, the theme name is returned.
	 *
	 * @since 3.4.0
	 *
	 * @return string Theme name, ready for display (translated)
	 */
	public function __toString() {
		return (string) $this-&gt;display( &#039;Name&#039; );
	}

	/**
	 * __isset() magic method for properties formerly returned by current_theme_info()
	 *
	 * @since 3.4.0
	 *
	 * @param string $offset Property to check if set.
	 * @return bool Whether the given property is set.
	 */
	public function __isset( $offset ) {
		static $properties = array(
			&#039;name&#039;,
			&#039;title&#039;,
			&#039;version&#039;,
			&#039;parent_theme&#039;,
			&#039;template_dir&#039;,
			&#039;stylesheet_dir&#039;,
			&#039;template&#039;,
			&#039;stylesheet&#039;,
			&#039;screenshot&#039;,
			&#039;description&#039;,
			&#039;author&#039;,
			&#039;tags&#039;,
			&#039;theme_root&#039;,
			&#039;theme_root_uri&#039;,
		);

		return in_array( $offset, $properties, true );
	}

	/**
	 * __get() magic method for properties formerly returned by current_theme_info()
	 *
	 * @since 3.4.0
	 *
	 * @param string $offset Property to get.
	 * @return mixed Property value.
	 */
	public function __get( $offset ) {
		switch ( $offset ) {
			case &#039;name&#039;:
			case &#039;title&#039;:
				return $this-&gt;get( &#039;Name&#039; );
			case &#039;version&#039;:
				return $this-&gt;get( &#039;Version&#039; );
			case &#039;parent_theme&#039;:
				return $this-&gt;parent() ? $this-&gt;parent()-&gt;get( &#039;Name&#039; ) : &#039;&#039;;
			case &#039;template_dir&#039;:
				return $this-&gt;get_template_directory();
			case &#039;stylesheet_dir&#039;:
				return $this-&gt;get_stylesheet_directory();
			case &#039;template&#039;:
				return $this-&gt;get_template();
			case &#039;stylesheet&#039;:
				return $this-&gt;get_stylesheet();
			case &#039;screenshot&#039;:
				return $this-&gt;get_screenshot( &#039;relative&#039; );
			// &#039;author&#039; and &#039;description&#039; did not previously return translated data.
			case &#039;description&#039;:
				return $this-&gt;display( &#039;Description&#039; );
			case &#039;author&#039;:
				return $this-&gt;display( &#039;Author&#039; );
			case &#039;tags&#039;:
				return $this-&gt;get( &#039;Tags&#039; );
			case &#039;theme_root&#039;:
				return $this-&gt;get_theme_root();
			case &#039;theme_root_uri&#039;:
				return $this-&gt;get_theme_root_uri();
			// For cases where the array was converted to an object.
			default:
				return $this-&gt;offsetGet( $offset );
		}
	}

	/**
	 * Method to implement ArrayAccess for keys formerly returned by get_themes()
	 *
	 * @since 3.4.0
	 *
	 * @param mixed $offset
	 * @param mixed $value
	 */
	#[ReturnTypeWillChange]
	public function offsetSet( $offset, $value ) {}

	/**
	 * Method to implement ArrayAccess for keys formerly returned by get_themes()
	 *
	 * @since 3.4.0
	 *
	 * @param mixed $offset
	 */
	#[ReturnTypeWillChange]
	public function offsetUnset( $offset ) {}

	/**
	 * Method to implement ArrayAccess for keys formerly returned by get_themes()
	 *
	 * @since 3.4.0
	 *
	 * @param mixed $offset
	 * @return bool
	 */
	#[ReturnTypeWillChange]
	public function offsetExists( $offset ) {
		static $keys = array(
			&#039;Name&#039;,
			&#039;Version&#039;,
			&#039;Status&#039;,
			&#039;Title&#039;,
			&#039;Author&#039;,
			&#039;Author Name&#039;,
			&#039;Author URI&#039;,
			&#039;Description&#039;,
			&#039;Template&#039;,
			&#039;Stylesheet&#039;,
			&#039;Template Files&#039;,
			&#039;Stylesheet Files&#039;,
			&#039;Template Dir&#039;,
			&#039;Stylesheet Dir&#039;,
			&#039;Screenshot&#039;,
			&#039;Tags&#039;,
			&#039;Theme Root&#039;,
			&#039;Theme Root URI&#039;,
			&#039;Parent Theme&#039;,
		);

		return in_array( $offset, $keys, true );
	}

	/**
	 * Method to implement ArrayAccess for keys formerly returned by get_themes().
	 *
	 * Author, Author Name, Author URI, and Description did not previously return
	 * translated data. We are doing so now as it is safe to do. However, as
	 * Name and Title could have been used as the key for get_themes(), both remain
	 * untranslated for back compatibility. This means that [&#039;Name&#039;] is not ideal,
	 * and care should be taken to use `$theme::display( &#039;Name&#039; )` to get a properly
	 * translated header.
	 *
	 * @since 3.4.0
	 *
	 * @param mixed $offset
	 * @return mixed
	 */
	#[ReturnTypeWillChange]
	public function offsetGet( $offset ) {
		switch ( $offset ) {
			case &#039;Name&#039;:
			case &#039;Title&#039;:
				/*
				 * See note above about using translated data. get() is not ideal.
				 * It is only for backward compatibility. Use display().
				 */
				return $this-&gt;get( &#039;Name&#039; );
			case &#039;Author&#039;:
				return $this-&gt;display( &#039;Author&#039; );
			case &#039;Author Name&#039;:
				return $this-&gt;display( &#039;Author&#039;, false );
			case &#039;Author URI&#039;:
				return $this-&gt;display( &#039;AuthorURI&#039; );
			case &#039;Description&#039;:
				return $this-&gt;display( &#039;Description&#039; );
			case &#039;Version&#039;:
			case &#039;Status&#039;:
				return $this-&gt;get( $offset );
			case &#039;Template&#039;:
				return $this-&gt;get_template();
			case &#039;Stylesheet&#039;:
				return $this-&gt;get_stylesheet();
			case &#039;Template Files&#039;:
				return $this-&gt;get_files( &#039;php&#039;, 1, true );
			case &#039;Stylesheet Files&#039;:
				return $this-&gt;get_files( &#039;css&#039;, 0, false );
			case &#039;Template Dir&#039;:
				return $this-&gt;get_template_directory();
			case &#039;Stylesheet Dir&#039;:
				return $this-&gt;get_stylesheet_directory();
			case &#039;Screenshot&#039;:
				return $this-&gt;get_screenshot( &#039;relative&#039; );
			case &#039;Tags&#039;:
				return $this-&gt;get( &#039;Tags&#039; );
			case &#039;Theme Root&#039;:
				return $this-&gt;get_theme_root();
			case &#039;Theme Root URI&#039;:
				return $this-&gt;get_theme_root_uri();
			case &#039;Parent Theme&#039;:
				return $this-&gt;parent() ? $this-&gt;parent()-&gt;get( &#039;Name&#039; ) : &#039;&#039;;
			default:
				return null;
		}
	}

	/**
	 * Returns errors property.
	 *
	 * @since 3.4.0
	 *
	 * @return WP_Error|false WP_Error if there are errors, or false.
	 */
	public function errors() {
		return is_wp_error( $this-&gt;errors ) ? $this-&gt;errors : false;
	}

	/**
	 * Determines whether the theme exists.
	 *
	 * A theme with errors exists. A theme with the error of &#039;theme_not_found&#039;,
	 * meaning that the theme&#039;s directory was not found, does not exist.
	 *
	 * @since 3.4.0
	 *
	 * @return bool Whether the theme exists.
	 */
	public function exists() {
		return ! ( $this-&gt;errors() &amp;&amp; in_array( &#039;theme_not_found&#039;, $this-&gt;errors()-&gt;get_error_codes(), true ) );
	}

	/**
	 * Returns reference to the parent theme.
	 *
	 * @since 3.4.0
	 *
	 * @return WP_Theme|false Parent theme, or false if the active theme is not a child theme.
	 */
	public function parent() {
		return isset( $this-&gt;parent ) ? $this-&gt;parent : false;
	}

	/**
	 * Perform reinitialization tasks.
	 *
	 * Prevents a callback from being injected during unserialization of an object.
	 */
	public function __wakeup() {
		if ( $this-&gt;parent &amp;&amp; ! $this-&gt;parent instanceof self ) {
			throw new UnexpectedValueException();
		}
		if ( $this-&gt;headers &amp;&amp; ! is_array( $this-&gt;headers ) ) {
			throw new UnexpectedValueException();
		}
		foreach ( $this-&gt;headers as $value ) {
			if ( ! is_string( $value ) ) {
				throw new UnexpectedValueException();
			}
		}
		$this-&gt;headers_sanitized = array();
	}

	/**
	 * Adds theme data to cache.
	 *
	 * Cache entries keyed by the theme and the type of data.
	 *
	 * @since 3.4.0
	 *
	 * @param string       $key  Type of data to store (theme, screenshot, headers, post_templates)
	 * @param array|string $data Data to store
	 * @return bool Return value from wp_cache_add()
	 */
	private function cache_add( $key, $data ) {
		return wp_cache_add( $key . &#039;-&#039; . $this-&gt;cache_hash, $data, &#039;themes&#039;, self::$cache_expiration );
	}

	/**
	 * Gets theme data from cache.
	 *
	 * Cache entries are keyed by the theme and the type of data.
	 *
	 * @since 3.4.0
	 *
	 * @param string $key Type of data to retrieve (theme, screenshot, headers, post_templates)
	 * @return mixed Retrieved data
	 */
	private function cache_get( $key ) {
		return wp_cache_get( $key . &#039;-&#039; . $this-&gt;cache_hash, &#039;themes&#039; );
	}

	/**
	 * Clears the cache for the theme.
	 *
	 * @since 3.4.0
	 */
	public function cache_delete() {
		foreach ( array( &#039;theme&#039;, &#039;screenshot&#039;, &#039;headers&#039;, &#039;post_templates&#039; ) as $key ) {
			wp_cache_delete( $key . &#039;-&#039; . $this-&gt;cache_hash, &#039;themes&#039; );
		}
		$this-&gt;template               = null;
		$this-&gt;textdomain_loaded      = null;
		$this-&gt;theme_root_uri         = null;
		$this-&gt;parent                 = null;
		$this-&gt;errors                 = null;
		$this-&gt;headers_sanitized      = null;
		$this-&gt;name_translated        = null;
		$this-&gt;block_theme            = null;
		$this-&gt;block_template_folders = null;
		$this-&gt;headers                = array();
		$this-&gt;__construct( $this-&gt;stylesheet, $this-&gt;theme_root );
		$this-&gt;delete_pattern_cache();
	}

	/**
	 * Gets a raw, unformatted theme header.
	 *
	 * The header is sanitized, but is not translated, and is not marked up for display.
	 * To get a theme header for display, use the display() method.
	 *
	 * Use the get_template() method, not the &#039;Template&#039; header, for finding the template.
	 * The &#039;Template&#039; header is only good for what was written in the style.css, while
	 * get_template() takes into account where WordPress actually located the theme and
	 * whether it is actually valid.
	 *
	 * @since 3.4.0
	 *
	 * @param string $header Theme header. Name, Description, Author, Version, ThemeURI, AuthorURI, Status, Tags.
	 * @return string|array|false String or array (for Tags header) on success, false on failure.
	 */
	public function get( $header ) {
		if ( ! isset( $this-&gt;headers[ $header ] ) ) {
			return false;
		}

		if ( ! isset( $this-&gt;headers_sanitized ) ) {
			$this-&gt;headers_sanitized = $this-&gt;cache_get( &#039;headers&#039; );
			if ( ! is_array( $this-&gt;headers_sanitized ) ) {
				$this-&gt;headers_sanitized = array();
			}
		}

		if ( isset( $this-&gt;headers_sanitized[ $header ] ) ) {
			return $this-&gt;headers_sanitized[ $header ];
		}

		// If themes are a persistent group, sanitize everything and cache it. One cache add is better than many cache sets.
		if ( self::$persistently_cache ) {
			foreach ( array_keys( $this-&gt;headers ) as $_header ) {
				$this-&gt;headers_sanitized[ $_header ] = $this-&gt;sanitize_header( $_header, $this-&gt;headers[ $_header ] );
			}
			$this-&gt;cache_add( &#039;headers&#039;, $this-&gt;headers_sanitized );
		} else {
			$this-&gt;headers_sanitized[ $header ] = $this-&gt;sanitize_header( $header, $this-&gt;headers[ $header ] );
		}

		return $this-&gt;headers_sanitized[ $header ];
	}

	/**
	 * Gets a theme header, formatted and translated for display.
	 *
	 * @since 3.4.0
	 *
	 * @param string $header    Theme header. Name, Description, Author, Version, ThemeURI, AuthorURI, Status, Tags.
	 * @param bool   $markup    Optional. Whether to mark up the header. Defaults to true.
	 * @param bool   $translate Optional. Whether to translate the header. Defaults to true.
	 * @return string|array|false Processed header. An array for Tags if `$markup` is false, string otherwise.
	 *                            False on failure.
	 */
	public function display( $header, $markup = true, $translate = true ) {
		$value = $this-&gt;get( $header );
		if ( false === $value ) {
			return false;
		}

		if ( $translate &amp;&amp; ( empty( $value ) || ! $this-&gt;load_textdomain() ) ) {
			$translate = false;
		}

		if ( $translate ) {
			$value = $this-&gt;translate_header( $header, $value );
		}

		if ( $markup ) {
			$value = $this-&gt;markup_header( $header, $value, $translate );
		}

		return $value;
	}

	/**
	 * Sanitizes a theme header.
	 *
	 * @since 3.4.0
	 * @since 5.4.0 Added support for `Requires at least` and `Requires PHP` headers.
	 * @since 6.1.0 Added support for `Update URI` header.
	 *
	 * @param string $header Theme header. Accepts &#039;Name&#039;, &#039;Description&#039;, &#039;Author&#039;, &#039;Version&#039;,
	 *                       &#039;ThemeURI&#039;, &#039;AuthorURI&#039;, &#039;Status&#039;, &#039;Tags&#039;, &#039;RequiresWP&#039;, &#039;RequiresPHP&#039;,
	 *                       &#039;UpdateURI&#039;.
	 * @param string $value  Value to sanitize.
	 * @return string|array An array for Tags header, string otherwise.
	 */
	private function sanitize_header( $header, $value ) {
		switch ( $header ) {
			case &#039;Status&#039;:
				if ( ! $value ) {
					$value = &#039;publish&#039;;
					break;
				}
				// Fall through otherwise.
			case &#039;Name&#039;:
				static $header_tags = array(
					&#039;abbr&#039;    =&gt; array( &#039;title&#039; =&gt; true ),
					&#039;acronym&#039; =&gt; array( &#039;title&#039; =&gt; true ),
					&#039;code&#039;    =&gt; true,
					&#039;em&#039;      =&gt; true,
					&#039;strong&#039;  =&gt; true,
				);

				$value = wp_kses( $value, $header_tags );
				break;
			case &#039;Author&#039;:
				// There shouldn&#039;t be anchor tags in Author, but some themes like to be challenging.
			case &#039;Description&#039;:
				static $header_tags_with_a = array(
					&#039;a&#039;       =&gt; array(
						&#039;href&#039;  =&gt; true,
						&#039;title&#039; =&gt; true,
					),
					&#039;abbr&#039;    =&gt; array( &#039;title&#039; =&gt; true ),
					&#039;acronym&#039; =&gt; array( &#039;title&#039; =&gt; true ),
					&#039;code&#039;    =&gt; true,
					&#039;em&#039;      =&gt; true,
					&#039;strong&#039;  =&gt; true,
				);

				$value = wp_kses( $value, $header_tags_with_a );
				break;
			case &#039;ThemeURI&#039;:
			case &#039;AuthorURI&#039;:
				$value = sanitize_url( $value );
				break;
			case &#039;Tags&#039;:
				$value = array_filter( array_map( &#039;trim&#039;, explode( &#039;,&#039;, strip_tags( $value ) ) ) );
				break;
			case &#039;Version&#039;:
			case &#039;RequiresWP&#039;:
			case &#039;RequiresPHP&#039;:
			case &#039;UpdateURI&#039;:
				$value = strip_tags( $value );
				break;
		}

		return $value;
	}

	/**
	 * Marks up a theme header.
	 *
	 * @since 3.4.0
	 *
	 * @param string       $header    Theme header. Name, Description, Author, Version, ThemeURI, AuthorURI, Status, Tags.
	 * @param string|array $value     Value to mark up. An array for Tags header, string otherwise.
	 * @param string       $translate Whether the header has been translated.
	 * @return string Value, marked up.
	 */
	private function markup_header( $header, $value, $translate ) {
		switch ( $header ) {
			case &#039;Name&#039;:
				if ( empty( $value ) ) {
					$value = esc_html( $this-&gt;get_stylesheet() );
				}
				break;
			case &#039;Description&#039;:
				$value = wptexturize( $value );
				break;
			case &#039;Author&#039;:
				if ( $this-&gt;get( &#039;AuthorURI&#039; ) ) {
					$value = sprintf( &#039;&lt;a href=&quot;%1$s&quot;&gt;%2$s&lt;/a&gt;&#039;, $this-&gt;display( &#039;AuthorURI&#039;, true, $translate ), $value );
				} elseif ( ! $value ) {
					$value = __( &#039;Anonymous&#039; );
				}
				break;
			case &#039;Tags&#039;:
				static $comma = null;
				if ( ! isset( $comma ) ) {
					$comma = wp_get_list_item_separator();
				}
				$value = implode( $comma, $value );
				break;
			case &#039;ThemeURI&#039;:
			case &#039;AuthorURI&#039;:
				$value = esc_url( $value );
				break;
		}

		return $value;
	}

	/**
	 * Translates a theme header.
	 *
	 * @since 3.4.0
	 *
	 * @param string       $header Theme header. Name, Description, Author, Version, ThemeURI, AuthorURI, Status, Tags.
	 * @param string|array $value  Value to translate. An array for Tags header, string otherwise.
	 * @return string|array Translated value. An array for Tags header, string otherwise.
	 */
	private function translate_header( $header, $value ) {
		switch ( $header ) {
			case &#039;Name&#039;:
				// Cached for sorting reasons.
				if ( isset( $this-&gt;name_translated ) ) {
					return $this-&gt;name_translated;
				}

				// phpcs:ignore WordPress.WP.I18n.LowLevelTranslationFunction,WordPress.WP.I18n.NonSingularStringLiteralText,WordPress.WP.I18n.NonSingularStringLiteralDomain
				$this-&gt;name_translated = translate( $value, $this-&gt;get( &#039;TextDomain&#039; ) );

				return $this-&gt;name_translated;
			case &#039;Tags&#039;:
				if ( empty( $value ) || ! function_exists( &#039;get_theme_feature_list&#039; ) ) {
					return $value;
				}

				static $tags_list;
				if ( ! isset( $tags_list ) ) {
					$tags_list = array(
						// As of 4.6, deprecated tags which are only used to provide translation for older themes.
						&#039;black&#039;             =&gt; __( &#039;Black&#039; ),
						&#039;blue&#039;              =&gt; __( &#039;Blue&#039; ),
						&#039;brown&#039;             =&gt; __( &#039;Brown&#039; ),
						&#039;gray&#039;              =&gt; __( &#039;Gray&#039; ),
						&#039;green&#039;             =&gt; __( &#039;Green&#039; ),
						&#039;orange&#039;            =&gt; __( &#039;Orange&#039; ),
						&#039;pink&#039;              =&gt; __( &#039;Pink&#039; ),
						&#039;purple&#039;            =&gt; __( &#039;Purple&#039; ),
						&#039;red&#039;               =&gt; __( &#039;Red&#039; ),
						&#039;silver&#039;            =&gt; __( &#039;Silver&#039; ),
						&#039;tan&#039;               =&gt; __( &#039;Tan&#039; ),
						&#039;white&#039;             =&gt; __( &#039;White&#039; ),
						&#039;yellow&#039;            =&gt; __( &#039;Yellow&#039; ),
						&#039;dark&#039;              =&gt; _x( &#039;Dark&#039;, &#039;color scheme&#039; ),
						&#039;light&#039;             =&gt; _x( &#039;Light&#039;, &#039;color scheme&#039; ),
						&#039;fixed-layout&#039;      =&gt; __( &#039;Fixed Layout&#039; ),
						&#039;fluid-layout&#039;      =&gt; __( &#039;Fluid Layout&#039; ),
						&#039;responsive-layout&#039; =&gt; __( &#039;Responsive Layout&#039; ),
						&#039;blavatar&#039;          =&gt; __( &#039;Blavatar&#039; ),
						&#039;photoblogging&#039;     =&gt; __( &#039;Photoblogging&#039; ),
						&#039;seasonal&#039;          =&gt; __( &#039;Seasonal&#039; ),
					);

					$feature_list = get_theme_feature_list( false ); // No API.

					foreach ( $feature_list as $tags ) {
						$tags_list += $tags;
					}
				}

				foreach ( $value as &amp;$tag ) {
					if ( isset( $tags_list[ $tag ] ) ) {
						$tag = $tags_list[ $tag ];
					} elseif ( isset( self::$tag_map[ $tag ] ) ) {
						$tag = $tags_list[ self::$tag_map[ $tag ] ];
					}
				}

				return $value;

			default:
				// phpcs:ignore WordPress.WP.I18n.LowLevelTranslationFunction,WordPress.WP.I18n.NonSingularStringLiteralText,WordPress.WP.I18n.NonSingularStringLiteralDomain
				$value = translate( $value, $this-&gt;get( &#039;TextDomain&#039; ) );
		}
		return $value;
	}

	/**
	 * Returns the directory name of the theme&#039;s &quot;stylesheet&quot; files, inside the theme root.
	 *
	 * In the case of a child theme, this is directory name of the child theme.
	 * Otherwise, get_stylesheet() is the same as get_template().
	 *
	 * @since 3.4.0
	 *
	 * @return string Stylesheet
	 */
	public function get_stylesheet() {
		return $this-&gt;stylesheet;
	}

	/**
	 * Returns the directory name of the theme&#039;s &quot;template&quot; files, inside the theme root.
	 *
	 * In the case of a child theme, this is the directory name of the parent theme.
	 * Otherwise, the get_template() is the same as get_stylesheet().
	 *
	 * @since 3.4.0
	 *
	 * @return string Template
	 */
	public function get_template() {
		return $this-&gt;template;
	}

	/**
	 * Returns the absolute path to the directory of a theme&#039;s &quot;stylesheet&quot; files.
	 *
	 * In the case of a child theme, this is the absolute path to the directory
	 * of the child theme&#039;s files.
	 *
	 * @since 3.4.0
	 *
	 * @return string Absolute path of the stylesheet directory.
	 */
	public function get_stylesheet_directory() {
		if ( $this-&gt;errors() &amp;&amp; in_array( &#039;theme_root_missing&#039;, $this-&gt;errors()-&gt;get_error_codes(), true ) ) {
			return &#039;&#039;;
		}

		return $this-&gt;theme_root . &#039;/&#039; . $this-&gt;stylesheet;
	}

	/**
	 * Returns the absolute path to the directory of a theme&#039;s &quot;template&quot; files.
	 *
	 * In the case of a child theme, this is the absolute path to the directory
	 * of the parent theme&#039;s files.
	 *
	 * @since 3.4.0
	 *
	 * @return string Absolute path of the template directory.
	 */
	public function get_template_directory() {
		if ( $this-&gt;parent() ) {
			$theme_root = $this-&gt;parent()-&gt;theme_root;
		} else {
			$theme_root = $this-&gt;theme_root;
		}

		return $theme_root . &#039;/&#039; . $this-&gt;template;
	}

	/**
	 * Returns the URL to the directory of a theme&#039;s &quot;stylesheet&quot; files.
	 *
	 * In the case of a child theme, this is the URL to the directory of the
	 * child theme&#039;s files.
	 *
	 * @since 3.4.0
	 *
	 * @return string URL to the stylesheet directory.
	 */
	public function get_stylesheet_directory_uri() {
		return $this-&gt;get_theme_root_uri() . &#039;/&#039; . str_replace( &#039;%2F&#039;, &#039;/&#039;, rawurlencode( $this-&gt;stylesheet ) );
	}

	/**
	 * Returns the URL to the directory of a theme&#039;s &quot;template&quot; files.
	 *
	 * In the case of a child theme, this is the URL to the directory of the
	 * parent theme&#039;s files.
	 *
	 * @since 3.4.0
	 *
	 * @return string URL to the template directory.
	 */
	public function get_template_directory_uri() {
		if ( $this-&gt;parent() ) {
			$theme_root_uri = $this-&gt;parent()-&gt;get_theme_root_uri();
		} else {
			$theme_root_uri = $this-&gt;get_theme_root_uri();
		}

		return $theme_root_uri . &#039;/&#039; . str_replace( &#039;%2F&#039;, &#039;/&#039;, rawurlencode( $this-&gt;template ) );
	}

	/**
	 * Returns the absolute path to the directory of the theme root.
	 *
	 * This is typically the absolute path to wp-content/themes.
	 *
	 * @since 3.4.0
	 *
	 * @return string Theme root.
	 */
	public function get_theme_root() {
		return $this-&gt;theme_root;
	}

	/**
	 * Returns the URL to the directory of the theme root.
	 *
	 * This is typically the absolute URL to wp-content/themes. This forms the basis
	 * for all other URLs returned by WP_Theme, so we pass it to the public function
	 * get_theme_root_uri() and allow it to run the {@see &#039;theme_root_uri&#039;} filter.
	 *
	 * @since 3.4.0
	 *
	 * @return string Theme root URI.
	 */
	public function get_theme_root_uri() {
		if ( ! isset( $this-&gt;theme_root_uri ) ) {
			$this-&gt;theme_root_uri = get_theme_root_uri( $this-&gt;stylesheet, $this-&gt;theme_root );
		}
		return $this-&gt;theme_root_uri;
	}

	/**
	 * Returns the main screenshot file for the theme.
	 *
	 * The main screenshot is called screenshot.png. gif and jpg extensions are also allowed.
	 *
	 * Screenshots for a theme must be in the stylesheet directory. (In the case of child
	 * themes, parent theme screenshots are not inherited.)
	 *
	 * @since 3.4.0
	 *
	 * @param string $uri Type of URL to return, either &#039;relative&#039; or an absolute URI. Defaults to absolute URI.
	 * @return string|false Screenshot file. False if the theme does not have a screenshot.
	 */
	public function get_screenshot( $uri = &#039;uri&#039; ) {
		$screenshot = $this-&gt;cache_get( &#039;screenshot&#039; );
		if ( $screenshot ) {
			if ( &#039;relative&#039; === $uri ) {
				return $screenshot;
			}
			return $this-&gt;get_stylesheet_directory_uri() . &#039;/&#039; . $screenshot;
		} elseif ( 0 === $screenshot ) {
			return false;
		}

		foreach ( array( &#039;png&#039;, &#039;gif&#039;, &#039;jpg&#039;, &#039;jpeg&#039;, &#039;webp&#039;, &#039;avif&#039; ) as $ext ) {
			if ( file_exists( $this-&gt;get_stylesheet_directory() . &quot;/screenshot.$ext&quot; ) ) {
				$this-&gt;cache_add( &#039;screenshot&#039;, &#039;screenshot.&#039; . $ext );
				if ( &#039;relative&#039; === $uri ) {
					return &#039;screenshot.&#039; . $ext;
				}
				return $this-&gt;get_stylesheet_directory_uri() . &#039;/&#039; . &#039;screenshot.&#039; . $ext;
			}
		}

		$this-&gt;cache_add( &#039;screenshot&#039;, 0 );
		return false;
	}

	/**
	 * Returns files in the theme&#039;s directory.
	 *
	 * @since 3.4.0
	 *
	 * @param string[]|string $type          Optional. Array of extensions to find, string of a single extension,
	 *                                       or null for all extensions. Default null.
	 * @param int             $depth         Optional. How deep to search for files. Defaults to a flat scan (0 depth).
	 *                                       -1 depth is infinite.
	 * @param bool            $search_parent Optional. Whether to return parent files. Default false.
	 * @return string[] Array of files, keyed by the path to the file relative to the theme&#039;s directory, with the values
	 *                  being absolute paths.
	 */
	public function get_files( $type = null, $depth = 0, $search_parent = false ) {
		$files = (array) self::scandir( $this-&gt;get_stylesheet_directory(), $type, $depth );

		if ( $search_parent &amp;&amp; $this-&gt;parent() ) {
			$files += (array) self::scandir( $this-&gt;get_template_directory(), $type, $depth );
		}

		return array_filter( $files );
	}

	/**
	 * Returns the theme&#039;s post templates.
	 *
	 * @since 4.7.0
	 * @since 5.8.0 Include block templates.
	 *
	 * @return array[] Array of page template arrays, keyed by post type and filename,
	 *                 with the value of the translated header name.
	 */
	public function get_post_templates() {
		// If you screw up your active theme and we invalidate your parent, most things still work. Let it slide.
		if ( $this-&gt;errors() &amp;&amp; $this-&gt;errors()-&gt;get_error_codes() !== array( &#039;theme_parent_invalid&#039; ) ) {
			return array();
		}

		$post_templates = $this-&gt;cache_get( &#039;post_templates&#039; );

		if ( ! is_array( $post_templates ) ) {
			$post_templates = array();

			$files = (array) $this-&gt;get_files( &#039;php&#039;, 1, true );

			foreach ( $files as $file =&gt; $full_path ) {
				if ( ! preg_match( &#039;|Template Name:(.*)$|mi&#039;, file_get_contents( $full_path ), $header ) ) {
					continue;
				}

				$types = array( &#039;page&#039; );
				if ( preg_match( &#039;|Template Post Type:(.*)$|mi&#039;, file_get_contents( $full_path ), $type ) ) {
					$types = explode( &#039;,&#039;, _cleanup_header_comment( $type[1] ) );
				}

				foreach ( $types as $type ) {
					$type = sanitize_key( $type );
					if ( ! isset( $post_templates[ $type ] ) ) {
						$post_templates[ $type ] = array();
					}

					$post_templates[ $type ][ $file ] = _cleanup_header_comment( $header[1] );
				}
			}

			$this-&gt;cache_add( &#039;post_templates&#039;, $post_templates );
		}

		if ( current_theme_supports( &#039;block-templates&#039; ) ) {
			$block_templates = get_block_templates( array(), &#039;wp_template&#039; );
			foreach ( get_post_types( array( &#039;public&#039; =&gt; true ) ) as $type ) {
				foreach ( $block_templates as $block_template ) {
					if ( ! $block_template-&gt;is_custom ) {
						continue;
					}

					if ( isset( $block_template-&gt;post_types ) &amp;&amp; ! in_array( $type, $block_template-&gt;post_types, true ) ) {
						continue;
					}

					$post_templates[ $type ][ $block_template-&gt;slug ] = $block_template-&gt;title;
				}
			}
		}

		if ( $this-&gt;load_textdomain() ) {
			foreach ( $post_templates as &amp;$post_type ) {
				foreach ( $post_type as &amp;$post_template ) {
					$post_template = $this-&gt;translate_header( &#039;Template Name&#039;, $post_template );
				}
			}
		}

		return $post_templates;
	}

	/**
	 * Returns the theme&#039;s post templates for a given post type.
	 *
	 * @since 3.4.0
	 * @since 4.7.0 Added the `$post_type` parameter.
	 *
	 * @param WP_Post|null $post      Optional. The post being edited, provided for context.
	 * @param string       $post_type Optional. Post type to get the templates for. Default &#039;page&#039;.
	 *                                If a post is provided, its post type is used.
	 * @return string[] Array of template header names keyed by the template file name.
	 */
	public function get_page_templates( $post = null, $post_type = &#039;page&#039; ) {
		if ( $post ) {
			$post_type = get_post_type( $post );
		}

		$post_templates = $this-&gt;get_post_templates();
		$post_templates = isset( $post_templates[ $post_type ] ) ? $post_templates[ $post_type ] : array();

		/**
		 * Filters list of page templates for a theme.
		 *
		 * @since 4.9.6
		 *
		 * @param string[]     $post_templates Array of template header names keyed by the template file name.
		 * @param WP_Theme     $theme          The theme object.
		 * @param WP_Post|null $post           The post being edited, provided for context, or null.
		 * @param string       $post_type      Post type to get the templates for.
		 */
		$post_templates = (array) apply_filters( &#039;theme_templates&#039;, $post_templates, $this, $post, $post_type );

		/**
		 * Filters list of page templates for a theme.
		 *
		 * The dynamic portion of the hook name, `$post_type`, refers to the post type.
		 *
		 * Possible hook names include:
		 *
		 *  - `theme_post_templates`
		 *  - `theme_page_templates`
		 *  - `theme_attachment_templates`
		 *
		 * @since 3.9.0
		 * @since 4.4.0 Converted to allow complete control over the `$page_templates` array.
		 * @since 4.7.0 Added the `$post_type` parameter.
		 *
		 * @param string[]     $post_templates Array of template header names keyed by the template file name.
		 * @param WP_Theme     $theme          The theme object.
		 * @param WP_Post|null $post           The post being edited, provided for context, or null.
		 * @param string       $post_type      Post type to get the templates for.
		 */
		$post_templates = (array) apply_filters( &quot;theme_{$post_type}_templates&quot;, $post_templates, $this, $post, $post_type );

		return $post_templates;
	}

	/**
	 * Scans a directory for files of a certain extension.
	 *
	 * @since 3.4.0
	 *
	 * @param string            $path          Absolute path to search.
	 * @param array|string|null $extensions    Optional. Array of extensions to find, string of a single extension,
	 *                                         or null for all extensions. Default null.
	 * @param int               $depth         Optional. How many levels deep to search for files. Accepts 0, 1+, or
	 *                                         -1 (infinite depth). Default 0.
	 * @param string            $relative_path Optional. The basename of the absolute path. Used to control the
	 *                                         returned path for the found files, particularly when this function
	 *                                         recurses to lower depths. Default empty.
	 * @return string[]|false Array of files, keyed by the path to the file relative to the `$path` directory prepended
	 *                        with `$relative_path`, with the values being absolute paths. False otherwise.
	 */
	private static function scandir( $path, $extensions = null, $depth = 0, $relative_path = &#039;&#039; ) {
		if ( ! is_dir( $path ) ) {
			return false;
		}

		if ( $extensions ) {
			$extensions  = (array) $extensions;
			$_extensions = implode( &#039;|&#039;, $extensions );
		}

		$relative_path = trailingslashit( $relative_path );
		if ( &#039;/&#039; === $relative_path ) {
			$relative_path = &#039;&#039;;
		}

		$results = scandir( $path );
		$files   = array();

		/**
		 * Filters the array of excluded directories and files while scanning theme folder.
		 *
		 * @since 4.7.4
		 *
		 * @param string[] $exclusions Array of excluded directories and files.
		 */
		$exclusions = (array) apply_filters( &#039;theme_scandir_exclusions&#039;, array( &#039;CVS&#039;, &#039;node_modules&#039;, &#039;vendor&#039;, &#039;bower_components&#039; ) );

		foreach ( $results as $result ) {
			if ( &#039;.&#039; === $result[0] || in_array( $result, $exclusions, true ) ) {
				continue;
			}
			if ( is_dir( $path . &#039;/&#039; . $result ) ) {
				if ( ! $depth ) {
					continue;
				}
				$found = self::scandir( $path . &#039;/&#039; . $result, $extensions, $depth - 1, $relative_path . $result );
				$files = array_merge_recursive( $files, $found );
			} elseif ( ! $extensions || preg_match( &#039;~\.(&#039; . $_extensions . &#039;)$~&#039;, $result ) ) {
				$files[ $relative_path . $result ] = $path . &#039;/&#039; . $result;
			}
		}

		return $files;
	}

	/**
	 * Loads the theme&#039;s textdomain.
	 *
	 * Translation files are not inherited from the parent theme. TODO: If this fails for the
	 * child theme, it should probably try to load the parent theme&#039;s translations.
	 *
	 * @since 3.4.0
	 *
	 * @return bool True if the textdomain was successfully loaded or has already been loaded.
	 *  False if no textdomain was specified in the file headers, or if the domain could not be loaded.
	 */
	public function load_textdomain() {
		if ( isset( $this-&gt;textdomain_loaded ) ) {
			return $this-&gt;textdomain_loaded;
		}

		$textdomain = $this-&gt;get( &#039;TextDomain&#039; );
		if ( ! $textdomain ) {
			$this-&gt;textdomain_loaded = false;
			return false;
		}

		if ( is_textdomain_loaded( $textdomain ) ) {
			$this-&gt;textdomain_loaded = true;
			return true;
		}

		$path       = $this-&gt;get_stylesheet_directory();
		$domainpath = $this-&gt;get( &#039;DomainPath&#039; );
		if ( $domainpath ) {
			$path .= $domainpath;
		} else {
			$path .= &#039;/languages&#039;;
		}

		$this-&gt;textdomain_loaded = load_theme_textdomain( $textdomain, $path );
		return $this-&gt;textdomain_loaded;
	}

	/**
	 * Determines whether the theme is allowed (multisite only).
	 *
	 * @since 3.4.0
	 *
	 * @param string $check   Optional. Whether to check only the &#039;network&#039;-wide settings, the &#039;site&#039;
	 *                        settings, or &#039;both&#039;. Defaults to &#039;both&#039;.
	 * @param int    $blog_id Optional. Ignored if only network-wide settings are checked. Defaults to current site.
	 * @return bool Whether the theme is allowed for the network. Returns true in single-site.
	 */
	public function is_allowed( $check = &#039;both&#039;, $blog_id = null ) {
		if ( ! is_multisite() ) {
			return true;
		}

		if ( &#039;both&#039; === $check || &#039;network&#039; === $check ) {
			$allowed = self::get_allowed_on_network();
			if ( ! empty( $allowed[ $this-&gt;get_stylesheet() ] ) ) {
				return true;
			}
		}

		if ( &#039;both&#039; === $check || &#039;site&#039; === $check ) {
			$allowed = self::get_allowed_on_site( $blog_id );
			if ( ! empty( $allowed[ $this-&gt;get_stylesheet() ] ) ) {
				return true;
			}
		}

		return false;
	}

	/**
	 * Returns whether this theme is a block-based theme or not.
	 *
	 * @since 5.9.0
	 *
	 * @return bool
	 */
	public function is_block_theme() {
		if ( isset( $this-&gt;block_theme ) ) {
			return $this-&gt;block_theme;
		}

		$paths_to_index_block_template = array(
			$this-&gt;get_file_path( &#039;/templates/index.html&#039; ),
			$this-&gt;get_file_path( &#039;/block-templates/index.html&#039; ),
		);

		$this-&gt;block_theme = false;

		foreach ( $paths_to_index_block_template as $path_to_index_block_template ) {
			if ( is_file( $path_to_index_block_template ) &amp;&amp; is_readable( $path_to_index_block_template ) ) {
				$this-&gt;block_theme = true;
				break;
			}
		}

		return $this-&gt;block_theme;
	}

	/**
	 * Retrieves the path of a file in the theme.
	 *
	 * Searches in the stylesheet directory before the template directory so themes
	 * which inherit from a parent theme can just override one file.
	 *
	 * @since 5.9.0
	 *
	 * @param string $file Optional. File to search for in the stylesheet directory.
	 * @return string The path of the file.
	 */
	public function get_file_path( $file = &#039;&#039; ) {
		$file = ltrim( $file, &#039;/&#039; );

		$stylesheet_directory = $this-&gt;get_stylesheet_directory();
		$template_directory   = $this-&gt;get_template_directory();

		if ( empty( $file ) ) {
			$path = $stylesheet_directory;
		} elseif ( $stylesheet_directory !== $template_directory &amp;&amp; file_exists( $stylesheet_directory . &#039;/&#039; . $file ) ) {
			$path = $stylesheet_directory . &#039;/&#039; . $file;
		} else {
			$path = $template_directory . &#039;/&#039; . $file;
		}

		/** This filter is documented in wp-includes/link-template.php */
		return apply_filters( &#039;theme_file_path&#039;, $path, $file );
	}

	/**
	 * Determines the latest WordPress default theme that is installed.
	 *
	 * This hits the filesystem.
	 *
	 * @since 4.4.0
	 *
	 * @return WP_Theme|false Object, or false if no theme is installed, which would be bad.
	 */
	public static function get_core_default_theme() {
		foreach ( array_reverse( self::$default_themes ) as $slug =&gt; $name ) {
			$theme = wp_get_theme( $slug );
			if ( $theme-&gt;exists() ) {
				return $theme;
			}
		}
		return false;
	}

	/**
	 * Returns array of stylesheet names of themes allowed on the site or network.
	 *
	 * @since 3.4.0
	 *
	 * @param int $blog_id Optional. ID of the site. Defaults to the current site.
	 * @return string[] Array of stylesheet names.
	 */
	public static function get_allowed( $blog_id = null ) {
		/**
		 * Filters the array of themes allowed on the network.
		 *
		 * Site is provided as context so that a list of network allowed themes can
		 * be filtered further.
		 *
		 * @since 4.5.0
		 *
		 * @param string[] $allowed_themes An array of theme stylesheet names.
		 * @param int      $blog_id        ID of the site.
		 */
		$network = (array) apply_filters( &#039;network_allowed_themes&#039;, self::get_allowed_on_network(), $blog_id );
		return $network + self::get_allowed_on_site( $blog_id );
	}

	/**
	 * Returns array of stylesheet names of themes allowed on the network.
	 *
	 * @since 3.4.0
	 *
	 * @return string[] Array of stylesheet names.
	 */
	public static function get_allowed_on_network() {
		static $allowed_themes;
		if ( ! isset( $allowed_themes ) ) {
			$allowed_themes = (array) get_site_option( &#039;allowedthemes&#039; );
		}

		/**
		 * Filters the array of themes allowed on the network.
		 *
		 * @since MU (3.0.0)
		 *
		 * @param string[] $allowed_themes An array of theme stylesheet names.
		 */
		$allowed_themes = apply_filters( &#039;allowed_themes&#039;, $allowed_themes );

		return $allowed_themes;
	}

	/**
	 * Returns array of stylesheet names of themes allowed on the site.
	 *
	 * @since 3.4.0
	 *
	 * @param int $blog_id Optional. ID of the site. Defaults to the current site.
	 * @return string[] Array of stylesheet names.
	 */
	public static function get_allowed_on_site( $blog_id = null ) {
		static $allowed_themes = array();

		if ( ! $blog_id || ! is_multisite() ) {
			$blog_id = get_current_blog_id();
		}

		if ( isset( $allowed_themes[ $blog_id ] ) ) {
			/**
			 * Filters the array of themes allowed on the site.
			 *
			 * @since 4.5.0
			 *
			 * @param string[] $allowed_themes An array of theme stylesheet names.
			 * @param int      $blog_id        ID of the site. Defaults to current site.
			 */
			return (array) apply_filters( &#039;site_allowed_themes&#039;, $allowed_themes[ $blog_id ], $blog_id );
		}

		$current = get_current_blog_id() === $blog_id;

		if ( $current ) {
			$allowed_themes[ $blog_id ] = get_option( &#039;allowedthemes&#039; );
		} else {
			switch_to_blog( $blog_id );
			$allowed_themes[ $blog_id ] = get_option( &#039;allowedthemes&#039; );
			restore_current_blog();
		}

		/*
		 * This is all super old MU back compat joy.
		 * &#039;allowedthemes&#039; keys things by stylesheet. &#039;allowed_themes&#039; keyed things by name.
		 */
		if ( false === $allowed_themes[ $blog_id ] ) {
			if ( $current ) {
				$allowed_themes[ $blog_id ] = get_option( &#039;allowed_themes&#039; );
			} else {
				switch_to_blog( $blog_id );
				$allowed_themes[ $blog_id ] = get_option( &#039;allowed_themes&#039; );
				restore_current_blog();
			}

			if ( ! is_array( $allowed_themes[ $blog_id ] ) || empty( $allowed_themes[ $blog_id ] ) ) {
				$allowed_themes[ $blog_id ] = array();
			} else {
				$converted = array();
				$themes    = wp_get_themes();
				foreach ( $themes as $stylesheet =&gt; $theme_data ) {
					if ( isset( $allowed_themes[ $blog_id ][ $theme_data-&gt;get( &#039;Name&#039; ) ] ) ) {
						$converted[ $stylesheet ] = true;
					}
				}
				$allowed_themes[ $blog_id ] = $converted;
			}
			// Set the option so we never have to go through this pain again.
			if ( is_admin() &amp;&amp; $allowed_themes[ $blog_id ] ) {
				if ( $current ) {
					update_option( &#039;allowedthemes&#039;, $allowed_themes[ $blog_id ], false );
					delete_option( &#039;allowed_themes&#039; );
				} else {
					switch_to_blog( $blog_id );
					update_option( &#039;allowedthemes&#039;, $allowed_themes[ $blog_id ], false );
					delete_option( &#039;allowed_themes&#039; );
					restore_current_blog();
				}
			}
		}

		/** This filter is documented in wp-includes/class-wp-theme.php */
		return (array) apply_filters( &#039;site_allowed_themes&#039;, $allowed_themes[ $blog_id ], $blog_id );
	}

	/**
	 * Returns the folder names of the block template directories.
	 *
	 * @since 6.4.0
	 *
	 * @return string[] {
	 *     Folder names used by block themes.
	 *
	 *     @type string $wp_template      Theme-relative directory name for block templates.
	 *     @type string $wp_template_part Theme-relative directory name for block template parts.
	 * }
	 */
	public function get_block_template_folders() {
		// Return set/cached value if available.
		if ( isset( $this-&gt;block_template_folders ) ) {
			return $this-&gt;block_template_folders;
		}

		$this-&gt;block_template_folders = $this-&gt;default_template_folders;

		$stylesheet_directory = $this-&gt;get_stylesheet_directory();
		// If the theme uses deprecated block template folders.
		if ( file_exists( $stylesheet_directory . &#039;/block-templates&#039; ) || file_exists( $stylesheet_directory . &#039;/block-template-parts&#039; ) ) {
			$this-&gt;block_template_folders = array(
				&#039;wp_template&#039;      =&gt; &#039;block-templates&#039;,
				&#039;wp_template_part&#039; =&gt; &#039;block-template-parts&#039;,
			);
		}
		return $this-&gt;block_template_folders;
	}

	/**
	 * Gets block pattern data for a specified theme.
	 * Each pattern is defined as a PHP file and defines
	 * its metadata using plugin-style headers. The minimum required definition is:
	 *
	 *     /**
	 *      * Title: My Pattern
	 *      * Slug: my-theme/my-pattern
	 *      *
	 *
	 * The output of the PHP source corresponds to the content of the pattern, e.g.:
	 *
	 *     &lt;main&gt;&lt;p&gt;&lt;?php echo &quot;Hello&quot;; ?&gt;&lt;/p&gt;&lt;/main&gt;
	 *
	 * If applicable, this will collect from both parent and child theme.
	 *
	 * Other settable fields include:
	 *
	 *     - Description
	 *     - Viewport Width
	 *     - Inserter         (yes/no)
	 *     - Categories       (comma-separated values)
	 *     - Keywords         (comma-separated values)
	 *     - Block Types      (comma-separated values)
	 *     - Post Types       (comma-separated values)
	 *     - Template Types   (comma-separated values)
	 *
	 * @since 6.4.0
	 *
	 * @return array Block pattern data.
	 */
	public function get_block_patterns() {
		$can_use_cached = ! wp_is_development_mode( &#039;theme&#039; );

		$pattern_data = $this-&gt;get_pattern_cache();
		if ( is_array( $pattern_data ) ) {
			if ( $can_use_cached ) {
				return $pattern_data;
			}
			// If in development mode, clear pattern cache.
			$this-&gt;delete_pattern_cache();
		}

		$dirpath      = $this-&gt;get_stylesheet_directory() . &#039;/patterns&#039;;
		$pattern_data = array();

		if ( ! file_exists( $dirpath ) ) {
			if ( $can_use_cached ) {
				$this-&gt;set_pattern_cache( $pattern_data );
			}
			return $pattern_data;
		}

		$files = (array) self::scandir( $dirpath, &#039;php&#039;, -1 );

		/**
		 * Filters list of block pattern files for a theme.
		 *
		 * @since 6.8.0
		 *
		 * @param array  $files   Array of theme files found within `patterns` directory.
		 * @param string $dirpath Path of theme `patterns` directory being scanned.
		 */
		$files = apply_filters( &#039;theme_block_pattern_files&#039;, $files, $dirpath );

		$dirpath = trailingslashit( $dirpath );

		if ( ! $files ) {
			if ( $can_use_cached ) {
				$this-&gt;set_pattern_cache( $pattern_data );
			}
			return $pattern_data;
		}

		$default_headers = array(
			&#039;title&#039;         =&gt; &#039;Title&#039;,
			&#039;slug&#039;          =&gt; &#039;Slug&#039;,
			&#039;description&#039;   =&gt; &#039;Description&#039;,
			&#039;viewportWidth&#039; =&gt; &#039;Viewport Width&#039;,
			&#039;inserter&#039;      =&gt; &#039;Inserter&#039;,
			&#039;categories&#039;    =&gt; &#039;Categories&#039;,
			&#039;keywords&#039;      =&gt; &#039;Keywords&#039;,
			&#039;blockTypes&#039;    =&gt; &#039;Block Types&#039;,
			&#039;postTypes&#039;     =&gt; &#039;Post Types&#039;,
			&#039;templateTypes&#039; =&gt; &#039;Template Types&#039;,
		);

		$properties_to_parse = array(
			&#039;categories&#039;,
			&#039;keywords&#039;,
			&#039;blockTypes&#039;,
			&#039;postTypes&#039;,
			&#039;templateTypes&#039;,
		);

		foreach ( $files as $file ) {
			$pattern = get_file_data( $file, $default_headers );

			if ( empty( $pattern[&#039;slug&#039;] ) ) {
				_doing_it_wrong(
					__FUNCTION__,
					sprintf(
						/* translators: 1: file name. */
						__( &#039;Could not register file &quot;%s&quot; as a block pattern (&quot;Slug&quot; field missing)&#039; ),
						$file
					),
					&#039;6.0.0&#039;
				);
				continue;
			}

			if ( ! preg_match( &#039;/^[A-z0-9\/_-]+$/&#039;, $pattern[&#039;slug&#039;] ) ) {
				_doing_it_wrong(
					__FUNCTION__,
					sprintf(
						/* translators: 1: file name; 2: slug value found. */
						__( &#039;Could not register file &quot;%1$s&quot; as a block pattern (invalid slug &quot;%2$s&quot;)&#039; ),
						$file,
						$pattern[&#039;slug&#039;]
					),
					&#039;6.0.0&#039;
				);
			}

			// Title is a required property.
			if ( ! $pattern[&#039;title&#039;] ) {
				_doing_it_wrong(
					__FUNCTION__,
					sprintf(
						/* translators: 1: file name. */
						__( &#039;Could not register file &quot;%s&quot; as a block pattern (&quot;Title&quot; field missing)&#039; ),
						$file
					),
					&#039;6.0.0&#039;
				);
				continue;
			}

			// For properties of type array, parse data as comma-separated.
			foreach ( $properties_to_parse as $property ) {
				if ( ! empty( $pattern[ $property ] ) ) {
					$pattern[ $property ] = array_filter( wp_parse_list( (string) $pattern[ $property ] ) );
				} else {
					unset( $pattern[ $property ] );
				}
			}

			// Parse properties of type int.
			$property = &#039;viewportWidth&#039;;
			if ( ! empty( $pattern[ $property ] ) ) {
				$pattern[ $property ] = (int) $pattern[ $property ];
			} else {
				unset( $pattern[ $property ] );
			}

			// Parse properties of type bool.
			$property = &#039;inserter&#039;;
			if ( ! empty( $pattern[ $property ] ) ) {
				$pattern[ $property ] = in_array(
					strtolower( $pattern[ $property ] ),
					array( &#039;yes&#039;, &#039;true&#039; ),
					true
				);
			} else {
				unset( $pattern[ $property ] );
			}

			$key = str_replace( $dirpath, &#039;&#039;, $file );

			$pattern_data[ $key ] = $pattern;
		}

		if ( $can_use_cached ) {
			$this-&gt;set_pattern_cache( $pattern_data );
		}

		return $pattern_data;
	}

	/**
	 * Gets block pattern cache.
	 *
	 * @since 6.4.0
	 * @since 6.6.0 Uses transients to cache regardless of site environment.
	 *
	 * @return array|false Returns an array of patterns if cache is found, otherwise false.
	 */
	private function get_pattern_cache() {
		if ( ! $this-&gt;exists() ) {
			return false;
		}

		$pattern_data = get_site_transient( &#039;wp_theme_files_patterns-&#039; . $this-&gt;cache_hash );

		if ( is_array( $pattern_data ) &amp;&amp; $pattern_data[&#039;version&#039;] === $this-&gt;get( &#039;Version&#039; ) ) {
			return $pattern_data[&#039;patterns&#039;];
		}
		return false;
	}

	/**
	 * Sets block pattern cache.
	 *
	 * @since 6.4.0
	 * @since 6.6.0 Uses transients to cache regardless of site environment.
	 *
	 * @param array $patterns Block patterns data to set in cache.
	 */
	private function set_pattern_cache( array $patterns ) {
		$pattern_data = array(
			&#039;version&#039;  =&gt; $this-&gt;get( &#039;Version&#039; ),
			&#039;patterns&#039; =&gt; $patterns,
		);

		/**
		 * Filters the cache expiration time for theme files.
		 *
		 * @since 6.6.0
		 *
		 * @param int    $cache_expiration Cache expiration time in seconds.
		 * @param string $cache_type       Type of cache being set.
		 */
		$cache_expiration = (int) apply_filters( &#039;wp_theme_files_cache_ttl&#039;, self::$cache_expiration, &#039;theme_block_patterns&#039; );

		// We don&#039;t want to cache patterns infinitely.
		if ( $cache_expiration &lt;= 0 ) {
			_doing_it_wrong(
				__METHOD__,
				sprintf(
					/* translators: %1$s: The filter name.*/
					__( &#039;The %1$s filter must return an integer value greater than 0.&#039; ),
					&#039;&lt;code&gt;wp_theme_files_cache_ttl&lt;/code&gt;&#039;
				),
				&#039;6.6.0&#039;
			);

			$cache_expiration = self::$cache_expiration;
		}

		set_site_transient( &#039;wp_theme_files_patterns-&#039; . $this-&gt;cache_hash, $pattern_data, $cache_expiration );
	}

	/**
	 * Clears block pattern cache.
	 *
	 * @since 6.4.0
	 * @since 6.6.0 Uses transients to cache regardless of site environment.
	 */
	public function delete_pattern_cache() {
		delete_site_transient( &#039;wp_theme_files_patterns-&#039; . $this-&gt;cache_hash );
	}

	/**
	 * Enables a theme for all sites on the current network.
	 *
	 * @since 4.6.0
	 *
	 * @param string|string[] $stylesheets Stylesheet name or array of stylesheet names.
	 */
	public static function network_enable_theme( $stylesheets ) {
		if ( ! is_multisite() ) {
			return;
		}

		if ( ! is_array( $stylesheets ) ) {
			$stylesheets = array( $stylesheets );
		}

		$allowed_themes = get_site_option( &#039;allowedthemes&#039; );
		foreach ( $stylesheets as $stylesheet ) {
			$allowed_themes[ $stylesheet ] = true;
		}

		update_site_option( &#039;allowedthemes&#039;, $allowed_themes );
	}

	/**
	 * Disables a theme for all sites on the current network.
	 *
	 * @since 4.6.0
	 *
	 * @param string|string[] $stylesheets Stylesheet name or array of stylesheet names.
	 */
	public static function network_disable_theme( $stylesheets ) {
		if ( ! is_multisite() ) {
			return;
		}

		if ( ! is_array( $stylesheets ) ) {
			$stylesheets = array( $stylesheets );
		}

		$allowed_themes = get_site_option( &#039;allowedthemes&#039; );
		foreach ( $stylesheets as $stylesheet ) {
			if ( isset( $allowed_themes[ $stylesheet ] ) ) {
				unset( $allowed_themes[ $stylesheet ] );
			}
		}

		update_site_option( &#039;allowedthemes&#039;, $allowed_themes );
	}

	/**
	 * Sorts themes by name.
	 *
	 * @since 3.4.0
	 *
	 * @param WP_Theme[] $themes Array of theme objects to sort (passed by reference).
	 */
	public static function sort_by_name( &amp;$themes ) {
		if ( str_starts_with( get_user_locale(), &#039;en_&#039; ) ) {
			uasort( $themes, array( &#039;WP_Theme&#039;, &#039;_name_sort&#039; ) );
		} else {
			foreach ( $themes as $key =&gt; $theme ) {
				$theme-&gt;translate_header( &#039;Name&#039;, $theme-&gt;headers[&#039;Name&#039;] );
			}
			uasort( $themes, array( &#039;WP_Theme&#039;, &#039;_name_sort_i18n&#039; ) );
		}
	}

	/**
	 * Callback function for usort() to naturally sort themes by name.
	 *
	 * Accesses the Name header directly from the class for maximum speed.
	 * Would choke on HTML but we don&#039;t care enough to slow it down with strip_tags().
	 *
	 * @since 3.4.0
	 *
	 * @param WP_Theme $a First theme.
	 * @param WP_Theme $b Second theme.
	 * @return int Negative if `$a` falls lower in the natural order than `$b`. Zero if they fall equally.
	 *             Greater than 0 if `$a` falls higher in the natural order than `$b`. Used with usort().
	 */
	private static function _name_sort( $a, $b ) {
		return strnatcasecmp( $a-&gt;headers[&#039;Name&#039;], $b-&gt;headers[&#039;Name&#039;] );
	}

	/**
	 * Callback function for usort() to naturally sort themes by translated name.
	 *
	 * @since 3.4.0
	 *
	 * @param WP_Theme $a First theme.
	 * @param WP_Theme $b Second theme.
	 * @return int Negative if `$a` falls lower in the natural order than `$b`. Zero if they fall equally.
	 *             Greater than 0 if `$a` falls higher in the natural order than `$b`. Used with usort().
	 */
	private static function _name_sort_i18n( $a, $b ) {
		return strnatcasecmp( $a-&gt;name_translated, $b-&gt;name_translated );
	}

	private static function _check_headers_property_has_correct_type( $headers ) {
		if ( ! is_array( $headers ) ) {
			return false;
		}
		foreach ( $headers as $key =&gt; $value ) {
			if ( ! is_string( $key ) || ! is_string( $value ) ) {
				return false;
			}
		}
		return true;
	}
}
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