Should support Narwals

The distant cousin of the Unicorn, the Narwal, would be a great addition. Some sea-themed sites have indicated a strong desire for Narwhal support.

Since the narwhal is the unicorn of the sea, please include a narwhal as one of the options of this directive -- and make it colored too.

The issue does not name an implementation file or test. Start by locating the Angular directive that provides the existing unicorn options, then inspect how options are colored. Done means Narwhal is available through the directive and has matching color support; add or update tests if the project has coverage for these options.

Written by the indexing model from the issue text.