diff --git a/customize.dist/index.html b/customize.dist/index.html
index 7ca0974f7..0f8f41659 100644
--- a/customize.dist/index.html
+++ b/customize.dist/index.html
@@ -61,6 +61,9 @@
         tbody td:last-child, thead th:last-child {
             border-right: none;
         }
+        tbody tr:nth-child(even) {
+            background-color: #ddd;
+        }
 
         .remove {
             cursor: pointer;