WP_Debug_Data::get_sizes

				if ( $enabled ) {
					$parent_theme_auto_update_string = __( 'Enabled' );
				} else {
					$parent_theme_auto_update_string = __( 'Disabled' );
				}

				/** This filter is documented in wp-admin/includes/class-wp-debug-data.php */
				$parent_theme_auto_update_string = apply_filters( 'theme_auto_update_debug_string', $auto_updates_string, $parent_theme, $enabled );

				$info['wp-parent-theme']['fields']['auto_update'] = array(
					'label' => __( 'Auto-update' ),
					'value' => $parent_theme_auto_update_string,
					'debug' => $parent_theme_auto_update_string,
				);
			}
		}

		// Populate a list of all themes available in the install.
		$all_themes = wp_get_themes();

		foreach ( $all_themes as $theme_slug => $theme ) {
			// Exclude the currently active theme from the list of all themes.
			if ( $active_theme->stylesheet === $theme_slug ) {
				continue;
			}

			// Exclude the currently active parent theme from the list of all themes.
			if ( ! empty( $parent_theme ) && $parent_theme->stylesheet === $theme_slug ) {
				continue;
			}

			$theme_version = $theme->version;
			$theme_author  = $theme->author;

			// Sanitize.
			$theme_author = wp_kses( $theme_author, array() );

			$theme_version_string       = __( 'No version or author information is available.' );
			$theme_version_string_debug = 'undefined';

			if ( ! empty( $theme_version ) && ! empty( $theme_author ) ) {
				/* translators: 1: Theme version number. 2: Theme author name. */
				$theme_version_string       = sprintf( __( 'Version %1$s by %2$s' ), $theme_version, $theme_author );
				$theme_version_string_debug = sprintf( 'version: %s, author: %s', $theme_version, $theme_author );
			} else {
				if ( ! empty( $theme_author ) ) {
					/* translators: %s: Theme author name. */
					$theme_version_string       = sprintf( __( 'By %s' ), $theme_author );
					$theme_version_string_debug = sprintf( 'author: %s, version: (undefined)', $theme_author );
				}

				if ( ! empty( $theme_version ) ) {
					/* translators: %s: Theme version number. */
					$theme_version_string       = sprintf( __( 'Version %s' ), $theme_version );
					$theme_version_string_debug = sprintf( 'author: (undefined), version: %s', $theme_version );
				}
			}

			if ( array_key_exists( $theme_slug, $theme_updates ) ) {
				/* translators: %s: Latest theme version number. */
				$theme_version_string       .= ' ' . sprintf( __( '(Latest version: %s)' ), $theme_updates[ $theme_slug ]->update['new_version'] );
				$theme_version_string_debug .= sprintf( ' (latest version: %s)', $theme_updates[ $theme_slug ]->update['new_version'] );
			}

			if ( $auto_updates_enabled ) {
				if ( isset( $transient->response[ $theme_slug ] ) ) {
					$item = $transient->response[ $theme_slug ];
				} elseif ( isset( $transient->no_update[ $theme_slug ] ) ) {
					$item = $transient->no_update[ $theme_slug ];
				} else {
					$item = array(
						'theme'        => $theme_slug,
						'new_version'  => $theme->version,
						'url'          => '',
						'package'      => '',
						'requires'     => '',
						'requires_php' => '',
					);
				}

				$type = 'theme';
				/** This filter is documented in wp-admin/includes/class-wp-automatic-updater.php */
				$auto_update_forced = apply_filters( "auto_update_{$type}", null, (object) $item );

				if ( ! is_null( $auto_update_forced ) ) {
					$enabled = $auto_update_forced;
				} else {
					$enabled = in_array( $theme_slug, $auto_updates, true );
				}

				if ( $enabled ) {
					$auto_updates_string = __( 'Auto-updates enabled' );
				} else {
					$auto_updates_string = __( 'Auto-updates disabled' );
				}

				/**
				 * Filters the text string of the auto-updates setting for each theme in the Site Health debug data.
				 *
				 * @since 5.5.0
				 *
				 * @param string   $auto_updates_string The string output for the auto-updates column.
				 * @param WP_Theme $theme               An object of theme data.
				 * @param bool     $enabled             Whether auto-updates are enabled for this item.
				 */
				$auto_updates_string = apply_filters( 'theme_auto_update_debug_string', $auto_updates_string, $theme, $enabled );

				$theme_version_string       .= ' | ' . $auto_updates_string;
				$theme_version_string_debug .= ',' . $auto_updates_string;
			}

			$info['wp-themes-inactive']['fields'][ sanitize_text_field( $theme->name ) ] = array(
				'label' => sprintf(
					/* translators: 1: Theme name. 2: Theme slug. */
					__( '%1$s (%2$s)' ),
					$theme->name,