big restructure

config/settings.php

@@ -4,5 +4,6 @@ return array (
   'app_locale' => 'de',
   'app_theme' => 'dark',
   'app_theme_user' => '1',
-  'app_primary_color' => '#9b3dc7',
+  'app_registration' => '1',
+  'app_primary_color' => '#105433',
 );

config/themes.php

@@ -0,0 +1,7 @@
+<?php
+
+return [
+    'light' => 'Light',
+    'dark' => 'Dark',
+    'dark-green' => 'Dark green',
+];