diff -r 48c4eec2b7e6 -r 8c2e4d02f4ef wp/wp-includes/css/dist/customize-widgets/style.css
--- a/wp/wp-includes/css/dist/customize-widgets/style.css	Fri Sep 05 18:40:08 2025 +0200
+++ b/wp/wp-includes/css/dist/customize-widgets/style.css	Fri Sep 05 18:52:52 2025 +0200
@@ -60,17 +60,25 @@
 .customize-widgets-header-toolbar .customize-widgets-header-toolbar__inserter-toggle.components-button.has-icon{
   border-radius:2px;
   color:#fff;
-  height:24px;
+  height:32px;
   margin:12px 0 12px auto;
-  min-width:24px;
+  min-width:32px;
   padding:0;
 }
 .customize-widgets-header-toolbar .customize-widgets-header-toolbar__inserter-toggle.components-button.has-icon:before{
   content:none;
 }
+@media not (prefers-reduced-motion){
+  .customize-widgets-header-toolbar .customize-widgets-header-toolbar__inserter-toggle.components-button.has-icon svg{
+    transition:transform .2s cubic-bezier(.165, .84, .44, 1);
+  }
+}
 .customize-widgets-header-toolbar .customize-widgets-header-toolbar__inserter-toggle.components-button.has-icon.is-pressed{
   background:#1e1e1e;
 }
+.customize-widgets-header-toolbar .customize-widgets-header-toolbar__inserter-toggle.components-button.has-icon.is-pressed svg{
+  transform:rotate(45deg);
+}
 .customize-widgets-header-toolbar .components-button.has-icon.customize-widgets-editor-history-button.redo-button{
   margin-left:-12px;
 }
@@ -135,7 +143,6 @@
 }
 .customize-widgets-keyboard-shortcut-help-modal__shortcut-description{
   flex:1;
-  flex-basis:auto;
   margin:0;
 }
 .customize-widgets-keyboard-shortcut-help-modal__shortcut-key-combination{