Prepare for theming support

controller/stylecontroller.php

@@ -0,0 +1,23 @@
+<?php
+
+namespace OCA\Deck\Controller;
+
+use OCP\IRequest;
+use OCP\AppFramework\ApiController as BaseApiController;
+
+class ApiController extends BaseApiController {
+    private $defaults;
+    public function __construct($appName,
+                                IRequest $request, OC_Defaults $defaults){
+        parent::__construct($appName, $request);
+        $this->defaults = $defaults;
+    }
+    /**
+     * @PublicPage
+     * @NoCSRFRequired
+     * @CORS
+     */
+    public function generateCss() {
+        return 
+    }
+}