Better themeing support!!

app/views/home/index.html.haml

@@ -2,8 +2,8 @@
   %meta{name: 'applicationServerKey', content: Rails.configuration.x.vapid_public_key}
   %script#initial-state{ type: 'application/json' }!= json_escape(@initial_state_json)
 
-  = javascript_pack_tag "frontends/#{@frontend}", integrity: true, crossorigin: 'anonymous'
-  = stylesheet_pack_tag "frontends/#{@frontend}", integrity: true, media: 'all'
+  = javascript_pack_tag "themes/#{current_theme}", integrity: true, crossorigin: 'anonymous'
+  = stylesheet_pack_tag "themes/#{current_theme}", integrity: true, media: 'all'
 
 .app-holder#mastodon{ data: { props: Oj.dump(default_props) } }
   %noscript

app/views/settings/preferences/show.html.haml

@@ -5,6 +5,8 @@
   = render 'shared/error_messages', object: current_user
 
   .fields-group
+    = f.input :setting_theme, collection: Themes.instance.names, label_method: lambda { |theme| safe_join([I18n.t("themes.#{theme}", default: theme)])}, wrapper: :with_label, include_blank: false
+
     = f.input :locale,
       collection: I18n.available_locales,
       wrapper: :with_label,