commit 90469d6be7823f9816e544b7d30bcd74db6edca3
Author: Joel Pittet <joel@pittet.ca>
Date:   Tue Dec 10 17:10:33 2013 -0800

    108

diff --git a/core/themes/seven/seven.theme b/core/themes/seven/seven.theme
index c493254..722b701 100644
--- a/core/themes/seven/seven.theme
+++ b/core/themes/seven/seven.theme
@@ -114,33 +114,6 @@ function seven_preprocess_admin_block_content(&$variables) {
 }
 
 /**
- * Implements hook_preprocess_HOOK() for tablesort indicator templates.
- *
- * Uses Seven's image versions, so the arrows show up as black and not gray on
- * gray.
- */
-function seven_preprocess_tablesort_indicator(&$variables) {
-  $theme_path = drupal_get_path('theme', 'seven');
-  if ($variables['style'] == 'asc') {
-    $variables['uri'] = $theme_path . '/images/arrow-asc.png';
-    $text = t('Sort ascending');
-  }
-  else {
-    $variables['uri'] = $theme_path . '/images/arrow-desc.png';
-    $text = t('Sort descending');
-  }
-
-  $variables['image'] = array(
-    '#theme' => 'image',
-    '#uri' => $variables['uri'],
-    '#width' => 9,
-    '#height' => 5,
-    '#alt' => $text,
-    '#title' => $text,
-  );
-}
-
-/**
  * Overrides theme_menu_local_action().
  */
 function seven_menu_local_action($variables) {
diff --git a/core/themes/seven/templates/tablesort-indicator.html.twig b/core/themes/seven/templates/tablesort-indicator.html.twig
new file mode 100644
index 0000000..7fea0dc
--- /dev/null
+++ b/core/themes/seven/templates/tablesort-indicator.html.twig
@@ -0,0 +1,16 @@
+{#
+/**
+ * @file
+ * Default theme implementation for displaying a tablesort indicator.
+ *
+ * Available variables:
+ * - style: Either 'asc' or 'desc', indicating the sorting direction.
+ *
+ * @ingroup themeable
+ */
+#}
+{% if style == 'asc' -%}
+  <img src="{{ url(theme_path ~ 'images/arrow-asc.png') }}" width="9" height="5" alt="{{ 'Sort ascending'|t }}" title="{{ 'Sort ascending'|t }}" />
+{% else -%}
+  <img src="{{ url(theme_path ~ 'images/arrow-desc.png') }}" width="9" height="5" alt="{{ 'Sort descending'|t }}" title="{{ 'Sort descending'|t }}" />
+{% endif %}