diff -r 48c4eec2b7e6 -r 8c2e4d02f4ef wp/wp-includes/blocks/group/editor.css
--- a/wp/wp-includes/blocks/group/editor.css	Fri Sep 05 18:40:08 2025 +0200
+++ b/wp/wp-includes/blocks/group/editor.css	Fri Sep 05 18:52:52 2025 +0200
@@ -24,24 +24,12 @@
 }
 .wp-block-group.is-layout-flex.block-editor-block-list__block>.block-list-appender:only-child:after{
   border:1px dashed;
-  border-radius:2px;
   content:"";
   display:flex;
-  flex:1 0 48px;
-  min-height:46px;
+  flex:1 0 40px;
+  min-height:38px;
   pointer-events:none;
 }
-.wp-block-group.is-layout-flex.block-editor-block-list__block>.block-list-appender:only-child:after:before{
-  background:currentColor;
-  bottom:0;
-  content:"";
-  left:0;
-  opacity:.1;
-  pointer-events:none;
-  position:absolute;
-  right:0;
-  top:0;
-}
 .wp-block-group.is-layout-flex.block-editor-block-list__block>.block-list-appender:only-child .block-editor-button-block-appender,.wp-block-group.is-layout-flex.block-editor-block-list__block>.block-list-appender:only-child .block-editor-inserter{
   pointer-events:all;
 }
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