Ticket #36795: 36795.2.diff

src/wp-admin/css/customize-nav-menus.css

@@ -16 +16 @@
         color: #555;
 }
 
+/* The `edit-menu` button uses also the `button-link` class. */
 .customize-control-nav_menu_location .edit-menu {
-        margin-top: 1px;
+        margin-left: 6px;
+        vertical-align: middle;
+        color: #0073aa;
+        text-decoration: underline;
 }
 
+.customize-control-nav_menu_location .edit-menu:hover,
+.customize-control-nav_menu_location .edit-menu:active {
+        color: #00a0d2;
+}
+
+.customize-control-nav_menu_location .edit-menu:focus {
+        color: #124964;
+}
+
 .wp-customizer .menu-item-bar .menu-item-handle,
 .wp-customizer .menu-item-settings,
 .wp-customizer .menu-item-settings .description-thin {

src/wp-includes/customize/class-wp-customize-nav-menu-location-control.php

@@ -77 +77 @@
                                 ?>
                         </select>
                 </label>
-                <button type="button" class="button edit-menu<?php if ( ! $this->value() ) { echo ' hidden'; } ?>"><?php _e( 'Edit' ); ?></button>
+                <button type="button" class="button-link edit-menu<?php if ( ! $this->value() ) { echo ' hidden'; } ?>" aria-label="<?php esc_attr_e( 'Edit selected menu' ); ?>"><?php _e( 'Edit' ); ?></button>
                 <?php
         }
 }