diff -r 48c4eec2b7e6 -r 8c2e4d02f4ef wp/wp-admin/js/theme.js
--- a/wp/wp-admin/js/theme.js	Fri Sep 05 18:40:08 2025 +0200
+++ b/wp/wp-admin/js/theme.js	Fri Sep 05 18:52:52 2025 +0200
@@ -1665,7 +1665,7 @@
 		this.listenTo( this.collection, 'query:fail', function() {
 			$( 'body' ).removeClass( 'loading-content' );
 			$( '.theme-browser' ).find( 'div.error' ).remove();
-			$( '.theme-browser' ).find( 'div.themes' ).before( '<div class="error"><p>' + l10n.error + '</p><p><button class="button try-again">' + l10n.tryAgain + '</button></p></div>' );
+			$( '.theme-browser' ).find( 'div.themes' ).before( '<div class="notice notice-error"><p>' + l10n.error + '</p><p><button class="button try-again">' + l10n.tryAgain + '</button></p></div>' );
 			$( '.theme-browser .error .try-again' ).on( 'click', function( e ) {
 				e.preventDefault();
 				$( 'input.wp-filter-search' ).trigger( 'input' );