how do I change the gravatar RoR plugin to use d=identicon?

Question

I am using the gravatar plugin for Ruby on Rails, works great, by woods via github -- but I want to change the the URL to add the option for d=identicon but I don't see that in the helper options.

Can I get some help?

Thanks!

Answer 1

<%= gravatar_for @user, :default=>'identicon' %>