title: How to customize the default login page in ActiveAdmin?
body: <p><strong>The Problem</strong></p>
  
  <p>I'm trying to customize the default login page in ActiveAdmin, but I'm having trouble getting the customizations to go through.</p>
  
  <p><strong>What I've tried</strong></p>
  
  <p>A commenter on <a href="http://railscasts.com/episodes/284-active-admin?view=comments">this RailsCasts episode</a> suggests copying <a href="https://github.com/gregbell/active_admin/blob/master/app/views/active_admin/devise/sessions/new.html.erb">this file</a> to <code>app/views/active_admin/devise/sessions/new.html.erb</code> and customizing it from there. However, doing so does not seem to replace the default login form.</p>
  
  <p>I also tried replacing <code>devise_for :admin_users, ActiveAdmin::Devise.config</code> with <code>devise_for :admin_users</code> as the commenter suggests, which seems to point the routes to the right place, but I get a bunch of server errors related to none of the ActiveAdmin variables being recognized in this context.</p>
  
  <p>I've searched the docs, but I haven't been able to find documentation around customizing the login form in particular.</p>
  
  <p><strong>Question</strong></p>
  
  <p>What's the best way to go about customizing the login form in ActiveAdmin?</p>