My preference would be a Picard [Engage!](http://i2.wp.com/www.iniciativanerd.com.br/wp-content/uploads/2013/05/jean-luc-picard-engage-400x305.jpeg) :smile:. I guess it doesn't have the same impact in button form. Oh well.

Your button pattern would help to give the app some personality. I will add in next commit.