diff --git a/libs/Format/HTMLFile/Book.php b/libs/Format/HTMLFile/Book.php
index 5023625e..5fea33a6 100644
--- a/libs/Format/HTMLFile/Book.php
+++ b/libs/Format/HTMLFile/Book.php
@@ -1,24 +1,29 @@
 <?php namespace Todaymade\Daux\Format\HTMLFile;
 
+use Todaymade\Daux\Config;
 use Todaymade\Daux\Tree\Content;
 use Todaymade\Daux\Tree\Directory;
 
 class Book
 {
-    protected $cover;
     protected $tree;
     protected $pages = [];
 
-    public function __construct(Directory $tree, $cover)
+    public function __construct(Directory $tree, Config $config)
     {
         $this->tree = $tree;
-        $this->cover = $cover;
+        $this->config = $config;
     }
 
     protected function getStyles()
     {
-        // TODO :: un-hardcode that
-        return '<style>' . file_get_contents('themes/daux_singlepage/css/main.min.css') . '</style>';
+        $styles = '';
+        foreach ($this->config->getTheme()->getCSS() as $css) {
+            $file = $this->config->getThemesPath() . DIRECTORY_SEPARATOR . '..' . DIRECTORY_SEPARATOR . $css;
+            $styles .= '<style>' . file_get_contents($file) . '</style>';
+        }
+
+        return $styles;
     }
 
     protected function getPageUrl($page)
@@ -89,8 +94,8 @@ protected function generateTOC()
     protected function generateCover()
     {
         return '<div>' .
-        "<h1 style='font-size:40pt; margin-bottom:0;'>{$this->cover['title']}</h1>" .
-        "<p><strong>{$this->cover['subject']}</strong> by {$this->cover['author']}</p>" .
+        "<h1 style='font-size:40pt; margin-bottom:0;'>{$this->config->getTitle()}</h1>" .
+        "<p><strong>{$this->config->getTagline()}</strong> by {$this->config->getAuthor()}</p>" .
         '</div><div class="PageBreak">&nbsp;</div>';
     }
 
@@ -115,9 +120,9 @@ public function addPage($page, $content)
     public function generateHead()
     {
         $head = [
-            "<title>{$this->cover['title']}</title>",
-            "<meta name='description' content='{$this->cover['subject']}' />",
-            "<meta name='author' content='{$this->cover['author']}'>",
+            "<title>{$this->config->getTitle()}</title>",
+            "<meta name='description' content='{$this->config->getTagline()}' />",
+            "<meta name='author' content='{$this->config->getAuthor()}'>",
             "<meta charset='UTF-8'>",
             $this->getStyles(),
         ];
diff --git a/libs/Format/HTMLFile/Generator.php b/libs/Format/HTMLFile/Generator.php
index 672e509c..8b96d7eb 100644
--- a/libs/Format/HTMLFile/Generator.php
+++ b/libs/Format/HTMLFile/Generator.php
@@ -57,15 +57,13 @@ function () use ($destination) {
             }
         );
 
-        DauxHelper::rebaseConfiguration($config, '');
+        // TODO :: make it possible to customize the single page theme
+        $config['html']['theme'] = 'daux_singlepage';
+        $config['html']['theme-variant'] = null;
 
-        $data = [
-            'author' => $config->getAuthor(),
-            'title' => $config->getTitle(),
-            'subject' => $config->getTagline(),
-        ];
+        DauxHelper::rebaseConfiguration($config, '');
 
-        $book = new Book($this->daux->tree, $data);
+        $book = new Book($this->daux->tree, $config);
 
         $current = $this->daux->tree->getIndexPage();
         while ($current) {
diff --git a/libs/Tree/Content.php b/libs/Tree/Content.php
index df97a9d9..448b8022 100644
--- a/libs/Tree/Content.php
+++ b/libs/Tree/Content.php
@@ -150,6 +150,7 @@ public function dump()
 
         $dump['prev'] = $this->getPrevious() ? $this->getPrevious()->getUrl() : '';
         $dump['next'] = $this->getNext() ? $this->getNext()->getUrl() : '';
+        $dump['attributes'] = $this->getAttribute();
 
         return $dump;
     }