WP_Site_Health::get_test_theme_version(): array

489	public function get_test_theme_version() {490		$result = array(491			'label'       => __( 'Your themes are all up to date' ),492			'status'      => 'good',493			'badge'       => array(494				'label' => __( 'Security' ),495				'color' => 'blue',496			),497			'description' => sprintf(498				'<p>%s</p>',499				__( 'Themes add your site&#8217;s look and feel. It&#8217;s important to keep them up to date, to stay consistent with your brand and keep your site secure.' )500			),501			'actions'     => sprintf(502				'<p><a href="%s">%s</a></p>',503				esc_url( admin_url( 'themes.php' ) ),504				__( 'Manage your themes' )505			),506			'test'        => 'theme_version',507		);508 509		$theme_updates = get_theme_updates();510 511		$themes_total        = 0;512		$themes_need_updates = 0;513		$themes_inactive     = 0;514 515		// This value is changed during processing to determine how many themes are considered a reasonable amount.516		$allowed_theme_count = 1;517 518		$has_default_theme   = false;519		$has_unused_themes   = false;520		$show_unused_themes  = true;521		$using_default_theme = false;522 523		// Populate a list of all themes available in the install.524		$all_themes   = wp_get_themes();525		$active_theme = wp_get_theme();526 527		// If WP_DEFAULT_THEME doesn't exist, fall back to the latest core default theme.528		$default_theme = wp_get_theme( WP_DEFAULT_THEME );529		if ( ! $default_theme->exists() ) {530			$default_theme = WP_Theme::get_core_default_theme();531		}532 533		if ( $default_theme ) {534			$has_default_theme = true;535 536			if (537				$active_theme->get_stylesheet() === $default_theme->get_stylesheet()538			||539				is_child_theme() && $active_theme->get_template() === $default_theme->get_template()540			) {541				$using_default_theme = true;542			}543		}544 545		foreach ( $all_themes as $theme_slug => $theme ) {546			++$themes_total;547 548			if ( array_key_exists( $theme_slug, $theme_updates ) ) {549				++$themes_need_updates;550			}551		}552 553		// If this is a child theme, increase the allowed theme count by one, to account for the parent.554		if ( is_child_theme() ) {555			++$allowed_theme_count;556		}557 558		// If there's a default theme installed and not in use, we count that as allowed as well.559		if ( $has_default_theme && ! $using_default_theme ) {560			++$allowed_theme_count;561		}562 563		if ( $themes_total > $allowed_theme_count ) {564			$has_unused_themes = true;565			$themes_inactive   = ( $themes_total - $allowed_theme_count );566		}567 568		// Check if any themes need to be updated.