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             <code>icon_back</code>
             Optional. Name of the big icon on the card back. If not specified, the icon from the "icon" property is used.
         </li>
+        <li>
+            <code>background_image</code>
+            Optional. URL of a backgound image for the card back. If specified, replaces the back icon.
+        </li>
         <li>
             <code>title</code>
             The title of the card.
             A bulleted text line.
             Param1: the text
         </li>
+        <li>
+            <code>picture</code>
+            An inline picture.
+            Param1: URL of the picture.
+            Param2: Height in pixels.
+        </li>
     </ul>
 </p>