change jumbotron to background-color: #F6F7F8;

Author: daniellecrobinson

static/css/base.css

@@ -6878,7 +6878,7 @@ Railscasts-like style (c) Visoft, Inc. (Damien White)
 .header-info,
 .jumbotron-info {
   background-repeat: no-repeat;
-  background-color: #81c5f5;
+  background-color: #F6F7F8;
   background-size: 100%;
   padding-bottom: 10px; }