Index: modules/simpletest/simpletest.css
===================================================================
RCS file: /cvs/drupal/drupal/modules/simpletest/simpletest.css,v
retrieving revision 1.5
diff -u -r1.5 simpletest.css
--- modules/simpletest/simpletest.css	1 May 2009 11:01:53 -0000	1.5
+++ modules/simpletest/simpletest.css	23 Jun 2009 23:47:10 -0000
@@ -59,6 +59,14 @@
   background: #f5e742;
 }
 
+tr.simpletest-debug.odd {
+  background: #eeeeee;
+}
+
+tr.simpletest-debug.even {
+  background: #ffffff;
+}
+
 div.simpletest-image {
   display: inline;
   cursor: pointer;
Index: modules/simpletest/simpletest.pages.inc
===================================================================
RCS file: /cvs/drupal/drupal/modules/simpletest/simpletest.pages.inc,v
retrieving revision 1.5
diff -u -r1.5 simpletest.pages.inc
--- modules/simpletest/simpletest.pages.inc	20 Jun 2009 06:09:56 -0000	1.5
+++ modules/simpletest/simpletest.pages.inc	23 Jun 2009 23:47:11 -0000
@@ -254,7 +254,11 @@
       $row[] = $assertion->function;
       $row[] = simpletest_result_status_image($assertion->status);
 
-      $rows[] = array('data' => $row, 'class' => 'simpletest-' . $assertion->status);
+      $class = 'simpletest-' . $assertion->status;
+      if ($assertion->message_group == 'Debug') {
+        $class = 'simpletest-debug';
+      }
+      $rows[] = array('data' => $row, 'class' => $class);
 
       $group_summary['#' . $assertion->status]++;
       $form['result']['summary']['#' . $assertion->status]++;