lib/generators/themes_on_rails/templates/layout.html.liquid
<!DOCTYPE html>
<html>
<head>
<title><%= theme_name.humanize %></title>
{{ '<%= "#{theme_name}/all" %>' | asset_path | javascript_include_tag }}
{{ '<%= "#{theme_name}/all" %>' | asset_path | stylesheet_link_tag }}
{% csrf_meta_tags %}
</head>
<body>
{{ content_for_layout }}
</body>
</html>