diff --git a/app/controllers/user_controller.rb b/app/controllers/user_controller.rb
index 525f3230..92a3b601 100644
--- a/app/controllers/user_controller.rb
+++ b/app/controllers/user_controller.rb
@@ -1,7 +1,7 @@
 class UserController < ApplicationController
   include ThemeHelper
 
-  before_filter :authenticate_user!, only: %w(edit update edit_privacy update_privacy data)
+  before_filter :authenticate_user!, only: %w(edit update edit_privacy update_privacy edit_theme update_theme preview_theme data)
 
   def show
     @user = User.where('LOWER(screen_name) = ?', params[:username].downcase).first!
diff --git a/app/helpers/theme_helper.rb b/app/helpers/theme_helper.rb
index 679221f1..019c13d1 100644
--- a/app/helpers/theme_helper.rb
+++ b/app/helpers/theme_helper.rb
@@ -1,14 +1,4 @@
 module ThemeHelper
-  class ThemeIO < StringIO
-    def content_type
-      'text/css'
-    end
-
-    def original_filename
-      'theme.css'
-    end
-  end
-
   def render_theme_with_context(context = {})
     klass = Class.new do
       def initialize(hash = {})
diff --git a/config/late_initializers/costanza.rb b/config/late_initializers/costanza.rb
new file mode 100644
index 00000000..d2aba2c6
--- /dev/null
+++ b/config/late_initializers/costanza.rb
@@ -0,0 +1,41 @@
+# I seriously hope you guys don't do this.
+
+class Paperclip::FileCommandContentTypeDetector
+  alias stupid_type_from_file_command type_from_file_command
+  def type_from_file_command
+    default = stupid_type_from_file_command
+    if default == 'text/x-c' and File.extname(@filename) == '.css'
+      'text/css'
+    else
+      default
+    end
+  end
+end
+
+class ThemeIO < StringIO
+  def content_type
+    'text/css'
+  end
+
+  def original_filename
+    'theme.css'
+  end
+end
+
+class ThemeAdapter < Paperclip::StringioAdapter
+  def cache_current_values
+    @content_type = 'text/css'
+    @original_filename = 'theme.css'
+    @size = @target.size
+  end
+
+  def extension_for(x)
+    'css'
+  end
+end
+
+Paperclip.io_adapters.register ThemeAdapter do |target|
+  ThemeIO === target
+end
+
+# Here be monkey patches.