diff --git a/themes/Sylvia/themeconf.inc.php b/themes/Sylvia/themeconf.inc.php
index d56f805ba..e6f733ea7 100644
--- a/themes/Sylvia/themeconf.inc.php
+++ b/themes/Sylvia/themeconf.inc.php
@@ -1,4 +1,12 @@
 <?php
+/*
+Theme Name: Sylvia
+Version: 1
+Description: Dark background, flora and pink decorations.
+Theme URI: http://piwigo.org/ext/extension_view.php?eid=368
+Author: Piwigo team
+Author URI: http://piwigo.org
+*/
 $themeconf = array(
   'name'         => 'Sylvia',
   'parent'        => 'default',
diff --git a/themes/clear/themeconf.inc.php b/themes/clear/themeconf.inc.php
index 1ce4817e9..eefa339e2 100644
--- a/themes/clear/themeconf.inc.php
+++ b/themes/clear/themeconf.inc.php
@@ -1,4 +1,12 @@
 <?php
+/*
+Theme Name: clear
+Version: 1
+Description: White background, soft gray.
+Theme URI: http://piwigo.org/ext/extension_view.php?eid=9
+Author: Piwigo team
+Author URI: http://piwigo.org
+*/
 $themeconf = array(
   'name'  => 'clear',
   'parent' => 'default',
diff --git a/themes/dark/themeconf.inc.php b/themes/dark/themeconf.inc.php
index 018b97338..838c0c8f0 100644
--- a/themes/dark/themeconf.inc.php
+++ b/themes/dark/themeconf.inc.php
@@ -1,4 +1,12 @@
 <?php
+/*
+Theme Name: dark
+Version: 1
+Description: Dark background, grayscale.
+Theme URI: http://piwigo.org/ext/extension_view.php?eid=369
+Author: Piwigo team
+Author URI: http://piwigo.org
+*/
 $themeconf = array(
   'name'  => 'dark',
   'parent' => 'default',