lib/generators/themes_on_rails/templates/layout.html.erb
<!DOCTYPE html>
<html>
<head>
<title><%= theme_name.humanize %></title>
<%%= stylesheet_link_tag "<%= %Q{#{theme_name}/all} %>", media: "all", "data-turbolinks-track" => true %>
<%%= javascript_include_tag "<%= %Q{#{theme_name}/all} %>", "data-turbolinks-track" => true %>
<%%= csrf_meta_tags %>
</head>
<body>
<%%= yield %>
</body>
</html>