Lighten color of created icon

#### What does this MR do?
Changes `created` icon color to lighter gray

#### Screenshots (if relevant)
![Screen_Shot_2016-09-06_at_10.25.19_AM](/uploads/6543d0004d817adcbe13cc2b23b6b7bb/Screen_Shot_2016-09-06_at_10.25.19_AM.png)
cc @dimitrieh

See merge request !6230