Ticket #48590: 48590.2.diff

wp-includes/css/buttons.css

@@ -250 +250 @@
 .wp-core-ui .button-primary.focus,
 .wp-core-ui .button-primary:focus {
         background: #135e96;
-        border-color: #135e96;
+        border-color: #02163a;
         color: #fff;
 }