Update to Drupal 8.0.2. For more information, see https://www.drupal.org/drupal-8.0.2-release-notes

core/themes/bartik/css/components/field.css

@@ -29,6 +29,10 @@
   margin: 0;
   list-style: none;
 }
+/* This is required to win over specificity of [dir="rtl"] .region-content ul */
+[dir="rtl"] .field--type-entity-reference ul.links {
+  padding: 0;
+}
 .field--type-entity-reference ul.links li {
   float: left; /* LTR */
   padding: 0 1em 0 0; /* LTR */

core/themes/classy/README.txt

@@ -0,0 +1,17 @@
+ABOUT CLASSY
+-----------
+
+Classy is a base theme that provides many classes in its markup. For cleaner
+markup (fewer classes), the default Stable base theme can be used instead.
+
+To use Classy as your base theme, set the 'base theme' in your theme's .info.yml
+file to "classy":
+  base theme: classy
+
+See https://www.drupal.org/theme-guide/8/classy for more information on using
+the Classy theme.
+
+ABOUT DRUPAL THEMING
+--------------------
+
+See https://www.drupal.org/theme-guide/8 for more information on Drupal theming.

core/themes/classy/css/components/dialog.css

@@ -56,7 +56,7 @@
   top: 48.5%;
   z-index: 1000;
   background-color: #232323;
-  background-image: url(loading-small.gif);
+  background-image: url(../../../../misc/loading-small.gif);
   background-position: center center;
   background-repeat: no-repeat;
   border-radius: 7px;

core/themes/classy/templates/form/container.html.twig

@@ -5,8 +5,10 @@
  *
  * Used for grouped form items. Can also be used as a theme wrapper for any
  * renderable element, to surround it with a <div> and HTML attributes.
- * See the @link forms_api_reference.html Form API reference @endlink for more
- * information on the #theme_wrappers render array property.
+ * See \Drupal\Core\Render\Element\RenderElement for more
+ * information on the #theme_wrappers render array property, and
+ * \Drupal\Core\Render\Element\container for usage of the container render
+ * element.
  *
  * Available variables:
  * - attributes: HTML attributes for the containing element.

core/themes/engines/twig/twig.engine

@@ -40,7 +40,7 @@ function twig_init(Extension $theme) {
  *
  * Renders a Twig template.
  *
- * If the Twig debug setting is enabled, HTML comments including _theme() call
+ * If the Twig debug setting is enabled, HTML comments including the theme hook
  * and template file name suggestions will surround the template markup.
  *
  * @param string $template_file

core/themes/stable/README.txt

@@ -0,0 +1,26 @@
+
+ABOUT STABLE
+------------
+
+Stable is the default base theme; it provides minimal markup and very few
+CSS classes. If you prefer more structured markup see the Classy base theme.
+
+Stable allows core markup and styling to evolve by functioning as a backwards
+compatibility layer for themes against changes to core markup and CSS. If you
+browse Stable's contents, you will find copies of all the Twig templates and
+CSS files provided by core.
+
+Stable will be used as the base theme if no base theme is set in a theme's
+.info.yml file. To opt out of Stable you can set the base theme to false in
+your theme's .info.yml file (see the warning below before doing this):
+  base theme: false
+
+Warning: Themes that opt out of using Stable as a base theme will need
+continuous maintenance as core changes, so only opt out if you are prepared to
+keep track of those changes and how they affect your theme.
+
+ABOUT DRUPAL THEMING
+--------------------
+
+For more information, see Drupal.org's theming guide.
+https://www.drupal.org/theme-guide/8

core/themes/stable/css/color/color.admin.css

@@ -74,6 +74,8 @@ button.color-palette__lock,
   left: -10px;
   direction: ltr;
   text-indent: -9999px;
+  border: 0;
+  outline: 0;
 }
 [dir="rtl"] button.color-palette__lock,
 [dir="rtl"] .color-palette__lock {

core/themes/stable/templates/form/container.html.twig

@@ -5,8 +5,10 @@
  *
  * Used for grouped form items. Can also be used as a theme wrapper for any
  * renderable element, to surround it with a <div> and HTML attributes.
- * See the @link forms_api_reference.html Form API reference @endlink for more
- * information on the #theme_wrappers render array property.
+ * See \Drupal\Core\Render\Element\RenderElement for more
+ * information on the #theme_wrappers render array property, and
+ * \Drupal\Core\Render\Element\container for usage of the container render
+ * element.
  *
  * Available variables:
  * - attributes: HTML attributes for the containing element.