diff --git a/README.markdown b/README.markdown
index 6ef4f70..53a194a 100644
--- a/README.markdown
+++ b/README.markdown
@@ -171,4 +171,30 @@ Actually, the following constants can be overrided:
 - `APP_VERSION` => default value is master
 - `DB_FILENAME` => default value is `data/db.sqlite`
 - `DEBUG` => default is false (enable logs dump of picoFeed)
-- `DEBUG_DIRECTORY` => default is /tmp (place to store log files)
\ No newline at end of file
+- `DEBUG_DIRECTORY` => default is /tmp (place to store log files)
+- `THEME_DIRECTORY` => default is themes
+
+### How to create a theme for Miniflux?
+
+It's very easy to write a custom theme for Miniflux.
+
+A theme is just a CSS file, images and fonts.
+A theme doesn't change the behaviour of the application but only the page design.
+
+The first step is to create a new directory structure for your theme:
+
+    mkdir -p themes/mysuperskin/{css,img,fonts}
+
+The name of your theme should be only alphanumeric.
+There is the following directories inside your theme:
+
+- `css`: Your stylesheet, the file must be named `app.css` (required)
+- `img`: Theme images (not required)
+- `fonts`: Theme fonts (not required)
+
+For a very basic theme example, have a look to the directory `examples\mytheme`.
+
+Miniflux use responsive design, so it's better if your theme can handle mobile devices.
+
+If you write a very cool theme for Miniflux, **send me your code to be available in the default installation!**
+It would be awesome for everybody :)
\ No newline at end of file
diff --git a/common.php b/common.php
index 3ef3f31..aee4c6c 100644
--- a/common.php
+++ b/common.php
@@ -16,6 +16,7 @@ defined('HTTP_TIMEOUT') or define('HTTP_TIMEOUT', 10);
 defined('DB_FILENAME') or define('DB_FILENAME', 'data/db.sqlite');
 defined('DEBUG') or define('DEBUG', false);
 defined('DEBUG_DIRECTORY') or define('DEBUG_DIRECTORY', '/tmp');
+defined('THEME_DIRECTORY') or define('THEME_DIRECTORY', 'themes');
 
 PicoTools\container('db', function() {
 
diff --git a/examples/mytheme/css/app.css b/examples/mytheme/css/app.css
new file mode 100644
index 0000000..00abd51
--- /dev/null
+++ b/examples/mytheme/css/app.css
@@ -0,0 +1,11 @@
+@font-face {
+    font-family: Inconsolata;
+    src: url(../fonts/Inconsolata-Regular.ttf);
+}
+
+body {
+    margin-left: 300px;
+    padding-left: 10px;
+    border-left: 5px solid #000;
+    font-family: 'Inconsolata', sans-serif;
+}
diff --git a/examples/mytheme/fonts/Inconsolata-Bold.ttf b/examples/mytheme/fonts/Inconsolata-Bold.ttf
new file mode 100755
index 0000000..15eb599
Binary files /dev/null and b/examples/mytheme/fonts/Inconsolata-Bold.ttf differ
diff --git a/examples/mytheme/fonts/Inconsolata-Regular.ttf b/examples/mytheme/fonts/Inconsolata-Regular.ttf
new file mode 100755
index 0000000..4ea3681
Binary files /dev/null and b/examples/mytheme/fonts/Inconsolata-Regular.ttf differ
diff --git a/helpers.php b/helpers.php
new file mode 100644
index 0000000..a0a0229
--- /dev/null
+++ b/helpers.php
@@ -0,0 +1,20 @@
+<?php
+
+namespace Helper;
+
+
+function css()
+{
+    $theme = \Model\get_config_value('theme');
+
+    if ($theme !== 'original') {
+
+        $css_file = THEME_DIRECTORY.'/'.$theme.'/css/app.css';
+
+        if (file_exists($css_file)) {
+            return $css_file.'?version='.filemtime($css_file);
+        }
+    }
+
+    return 'assets/css/app.css?version='.filemtime('assets/css/app.css');
+}
\ No newline at end of file
diff --git a/index.php b/index.php
index f690335..50a88b6 100644
--- a/index.php
+++ b/index.php
@@ -7,6 +7,7 @@ require 'vendor/PicoFarad/Response.php';
 require 'vendor/PicoFarad/Request.php';
 require 'vendor/PicoFarad/Session.php';
 require 'vendor/PicoFarad/Router.php';
+require 'helpers.php';
 
 use PicoFarad\Router;
 use PicoFarad\Response;
@@ -492,6 +493,7 @@ Router\get_action('config', function() {
         'languages' => Model\get_languages(),
         'autoflush_options' => Model\get_autoflush_options(),
         'paging_options' => Model\get_paging_options(),
+        'theme_options' => Model\get_themes(),
         'menu' => 'config',
         'title' => t('Preferences')
     )));
@@ -525,6 +527,7 @@ Router\post_action('config', function() {
         'languages' => Model\get_languages(),
         'autoflush_options' => Model\get_autoflush_options(),
         'paging_options' => Model\get_paging_options(),
+        'theme_options' => Model\get_themes(),
         'menu' => 'config',
         'title' => t('Preferences')
     )));
diff --git a/locales/fr_FR/translations.php b/locales/fr_FR/translations.php
index 94bc247..4e6e5a4 100644
--- a/locales/fr_FR/translations.php
+++ b/locales/fr_FR/translations.php
@@ -1,6 +1,7 @@
 <?php
 
 return array(
+    'Theme' => 'Thème',
     'No item' => 'Aucun élément',
     'items' => 'éléments',
     'There is %d empty feeds, there is maybe an error: %s...' =>
diff --git a/model.php b/model.php
index 8121ca4..2436dc7 100644
--- a/model.php
+++ b/model.php
@@ -22,7 +22,7 @@ use PicoFeed\Reader;
 use PicoFeed\Export;
 
 
-const DB_VERSION     = 9;
+const DB_VERSION     = 10;
 const HTTP_USERAGENT = 'Miniflux - http://miniflux.net';
 const LIMIT_ALL      = -1;
 
@@ -40,6 +40,28 @@ function get_languages()
 }
 
 
+function get_themes()
+{
+    $themes = array(
+        'original' => t('Original')
+    );
+
+    if (file_exists(THEME_DIRECTORY)) {
+
+        $dir = new \DirectoryIterator(THEME_DIRECTORY);
+
+        foreach ($dir as $fileinfo) {
+
+            if (! $fileinfo->isDot() && $fileinfo->isDir()) {
+                $themes[$dir->getFilename()] = ucfirst($dir->getFilename());
+            }
+        }
+    }
+
+    return $themes;
+}
+
+
 function get_autoflush_options()
 {
     return array(
@@ -622,7 +644,7 @@ function get_config()
 {
     return \PicoTools\singleton('db')
         ->table('config')
-        ->columns('username', 'language', 'autoflush', 'nocontent', 'items_per_page')
+        ->columns('username', 'language', 'autoflush', 'nocontent', 'items_per_page', 'theme')
         ->findOne();
 }
 
@@ -687,6 +709,7 @@ function validate_config_update(array $values)
             new Validators\Required('autoflush', t('Value required')),
             new Validators\Required('items_per_page', t('Value required')),
             new Validators\Integer('items_per_page', t('Must be an integer')),
+            new Validators\Required('theme', t('Value required')),
         ));
     }
     else {
@@ -710,8 +733,8 @@ function save_config(array $values)
     if (! empty($values['password'])) {
 
         $values['password'] = \password_hash($values['password'], PASSWORD_BCRYPT);
-    }
-    else {
+
+    } else {
 
         unset($values['password']);
     }
diff --git a/schema.php b/schema.php
index bbe0a0e..30e1e20 100644
--- a/schema.php
+++ b/schema.php
@@ -3,6 +3,12 @@
 namespace Schema;
 
 
+function version_10($pdo)
+{
+    $pdo->exec('ALTER TABLE config ADD COLUMN theme TEXT DEFAULT "original"');
+}
+
+
 function version_9($pdo)
 {
     $pdo->exec('ALTER TABLE config ADD COLUMN items_per_page INTEGER DEFAULT 100');
diff --git a/templates/app_header.php b/templates/app_header.php
index e29b16a..9c14526 100644
--- a/templates/app_header.php
+++ b/templates/app_header.php
@@ -10,7 +10,7 @@
         <link rel="apple-touch-icon" sizes="114x114" href="./assets/img/touch-icon-iphone-retina.png">
         <link rel="apple-touch-icon" sizes="144x144" href="./assets/img/touch-icon-ipad-retina.png">
         <title><?= isset($title) ? Helper\escape($title) : 'miniflux' ?></title>
-        <link href="./assets/css/app.css?v<?= filemtime('assets/css/app.css') ?>" rel="stylesheet" media="screen">
+        <link href="<?= Helper\css() ?>" rel="stylesheet" media="screen">
         <script type="text/javascript" src="./assets/js/app.js?v<?= filemtime('assets/js/app.js') ?>" defer></script>
     </head>
     <body>
diff --git a/templates/config.php b/templates/config.php
index 9401408..a1c9aec 100644
--- a/templates/config.php
+++ b/templates/config.php
@@ -22,6 +22,9 @@
     <?= Helper\form_label(t('Items per page'), 'items_per_page') ?>
     <?= Helper\form_select('items_per_page', $paging_options, $values, $errors) ?><br/>
 
+    <?= Helper\form_label(t('Theme'), 'theme') ?>
+    <?= Helper\form_select('theme', $theme_options, $values, $errors) ?><br/>
+
     <?= Helper\form_checkbox('nocontent', t('Do not fetch the content of articles'), 1, isset($values['nocontent']) ? $values['nocontent'] : false) ?><br />
 
     <div class="form-actions">