diff --git a/README.md b/README.md
index c023500..4b9d52b 100644
--- a/README.md
+++ b/README.md
@@ -135,6 +135,11 @@ Structure of each item which got from items() function.
     <td>str</td>
     <td>ex. "USD"</td>
   </tr>
+  <tr>
+    <td>bgColor</td>
+    <td>int</td>
+    <td>RGB Int</td>
+  </tr>
   <tr>
     <td>author</td>
     <td>object</td>