diff -r 34716fd837a4 -r be944660c56a wp/wp-admin/admin-header.php
--- a/wp/wp-admin/admin-header.php	Tue Dec 15 15:52:01 2020 +0100
+++ b/wp/wp-admin/admin-header.php	Wed Sep 21 18:19:35 2022 +0200
@@ -82,12 +82,12 @@
 ?>
 <script type="text/javascript">
 addLoadEvent = function(func){if(typeof jQuery!=='undefined')jQuery(document).ready(func);else if(typeof wpOnload!=='function'){wpOnload=func;}else{var oldonload=wpOnload;wpOnload=function(){oldonload();func();}}};
-var ajaxurl = '<?php echo admin_url( 'admin-ajax.php', 'relative' ); ?>',
-	pagenow = '<?php echo $current_screen->id; ?>',
-	typenow = '<?php echo $current_screen->post_type; ?>',
-	adminpage = '<?php echo $admin_body_class; ?>',
-	thousandsSeparator = '<?php echo addslashes( $wp_locale->number_format['thousands_sep'] ); ?>',
-	decimalPoint = '<?php echo addslashes( $wp_locale->number_format['decimal_point'] ); ?>',
+var ajaxurl = '<?php echo esc_js( admin_url( 'admin-ajax.php', 'relative' ) ); ?>',
+	pagenow = '<?php echo esc_js( $current_screen->id ); ?>',
+	typenow = '<?php echo esc_js( $current_screen->post_type ); ?>',
+	adminpage = '<?php echo esc_js( $admin_body_class ); ?>',
+	thousandsSeparator = '<?php echo esc_js( $wp_locale->number_format['thousands_sep'] ); ?>',
+	decimalPoint = '<?php echo esc_js( $wp_locale->number_format['decimal_point'] ); ?>',
 	isRtl = <?php echo (int) is_rtl(); ?>;
 </script>
 <?php
@@ -170,7 +170,7 @@
 	$admin_body_class .= ' taxonomy-' . $current_screen->taxonomy;
 }
 
-$admin_body_class .= ' branch-' . str_replace( array( '.', ',' ), '-', floatval( get_bloginfo( 'version' ) ) );
+$admin_body_class .= ' branch-' . str_replace( array( '.', ',' ), '-', (float) get_bloginfo( 'version' ) );
 $admin_body_class .= ' version-' . str_replace( '.', '-', preg_replace( '/^([.0-9]+).*/', '$1', get_bloginfo( 'version' ) ) );
 $admin_body_class .= ' admin-color-' . sanitize_html_class( get_user_option( 'admin_color' ), 'fresh' );
 $admin_body_class .= ' locale-' . sanitize_html_class( strtolower( str_replace( '_', '-', get_user_locale() ) ) );
@@ -190,26 +190,21 @@
 $admin_body_class .= ' no-customize-support no-svg';
 
 if ( $current_screen->is_block_editor() ) {
-	// Default to is-fullscreen-mode to avoid jumps in the UI.
-	$admin_body_class .= ' block-editor-page is-fullscreen-mode wp-embed-responsive';
-
-	if ( current_theme_supports( 'editor-styles' ) && current_theme_supports( 'dark-editor-style' ) ) {
-		$admin_body_class .= ' is-dark-theme';
-	}
+	$admin_body_class .= ' block-editor-page wp-embed-responsive';
 }
 
-$error = error_get_last();
+$error_get_last = error_get_last();
 
 // Print a CSS class to make PHP errors visible.
-if ( $error && WP_DEBUG && WP_DEBUG_DISPLAY && ini_get( 'display_errors' )
+if ( $error_get_last && WP_DEBUG && WP_DEBUG_DISPLAY && ini_get( 'display_errors' )
 	// Don't print the class for PHP notices in wp-config.php, as they happen before WP_DEBUG takes effect,
 	// and should not be displayed with the `error_reporting` level previously set in wp-load.php.
-	&& ( E_NOTICE !== $error['type'] || 'wp-config.php' !== wp_basename( $error['file'] ) )
+	&& ( E_NOTICE !== $error_get_last['type'] || 'wp-config.php' !== wp_basename( $error_get_last['file'] ) )
 ) {
 	$admin_body_class .= ' php-error';
 }
 
-unset( $error );
+unset( $error_get_last );
 
 ?>
 </head>