User theme has 4 variations (Green,yellow and blue.You can always add more with css).
$('#start').on('click',function(){ $.amaran({ 'theme' :'user blue', 'content' :{ img:'http://api.randomuser.me/0.2/portraits/men/36.jpg', user:'John Walker', message:'Lorem ipsum dolor sit amet, consectetur adipisicing elit. Cupiditate, ducimus?' }, 'position' :'bottom right', 'outEffect' :'slideBottom' }); });