--- a/wp/wp-includes/blocks/comments/block.json	Fri Sep 05 18:40:08 2025 +0200
+++ b/wp/wp-includes/blocks/comments/block.json	Fri Sep 05 18:52:52 2025 +0200
@@ -45,6 +45,18 @@
 			"__experimentalDefaultControls": {
 				"fontSize": true
 			}
+		},
+		"__experimentalBorder": {
+			"radius": true,
+			"color": true,
+			"width": true,
+			"style": true,
+			"__experimentalDefaultControls": {
+				"radius": true,
+				"color": true,
+				"width": true,
+				"style": true
+			}
 		}
 	},
 	"editorStyle": "wp-block-comments-editor",