diff --git a/view/theme/frio/config.php b/view/theme/frio/config.php
index e3164697ba..8add86ea05 100644
--- a/view/theme/frio/config.php
+++ b/view/theme/frio/config.php
@@ -1,6 +1,7 @@
 <?php
 
 use Friendica\App;
+use Friendica\Core\Config;
 use Friendica\Core\PConfig;
 use Friendica\Core\System;
 
@@ -24,24 +25,59 @@ function theme_post(App $a) {
 	}
 }
 
+function theme_admin_post(App $a) {
+	if (!local_user()) {
+		return;
+	}
+
+	if (isset($_POST['frio-settings-submit'])) {
+		Config::set('frio', 'schema',           $_POST["frio_schema"]);
+		Config::set('frio', 'nav_bg',           $_POST["frio_nav_bg"]);
+		Config::set('frio', 'nav_icon_color',   $_POST["frio_nav_icon_color"]);
+		Config::set('frio', 'link_color',       $_POST["frio_link_color"]);
+		Config::set('frio', 'background_color', $_POST["frio_background_color"]);
+		Config::set('frio', 'contentbg_transp', $_POST["frio_contentbg_transp"]);
+		Config::set('frio', 'background_image', $_POST["frio_background_image"]);
+		Config::set('frio', 'bg_image_option',  $_POST["frio_bg_image_option"]);
+		Config::set('frio', 'css_modified',     time());
+	}
+}
+
 function theme_content(App $a) {
 	if (!local_user()) {
 		return;
 	}
 	$arr = array();
 
-	$arr["schema"]           = PConfig::get(local_user(),'frio', 'schema');
-	$arr["nav_bg"]           = PConfig::get(local_user(),'frio', 'nav_bg');
-	$arr["nav_icon_color"]   = PConfig::get(local_user(),'frio', 'nav_icon_color');
-	$arr["link_color"]       = PConfig::get(local_user(),'frio', 'link_color');
-	$arr["bgcolor"]          = PConfig::get(local_user(),'frio', 'background_color');
-	$arr["contentbg_transp"] = PConfig::get(local_user(),'frio', 'contentbg_transp');
-	$arr["background_image"] = PConfig::get(local_user(),'frio', 'background_image');
-	$arr["bg_image_option"]  = PConfig::get(local_user(),'frio', 'bg_image_option');
+	$arr["schema"]           = PConfig::get(local_user(), 'frio', 'schema');
+	$arr["nav_bg"]           = PConfig::get(local_user(), 'frio', 'nav_bg');
+	$arr["nav_icon_color"]   = PConfig::get(local_user(), 'frio', 'nav_icon_color');
+	$arr["link_color"]       = PConfig::get(local_user(), 'frio', 'link_color');
+	$arr["bgcolor"]          = PConfig::get(local_user(), 'frio', 'background_color');
+	$arr["contentbg_transp"] = PConfig::get(local_user(), 'frio', 'contentbg_transp');
+	$arr["background_image"] = PConfig::get(local_user(), 'frio', 'background_image');
+	$arr["bg_image_option"]  = PConfig::get(local_user(), 'frio', 'bg_image_option');
 
 	return frio_form($arr);
 }
 
+function theme_admin(App $a) {
+	if (!local_user()) {
+		return;
+	}
+	$arr = array();
+
+	$arr["schema"]           = Config::get('frio', 'schema');
+	$arr["nav_bg"]           = Config::get('frio', 'nav_bg');
+	$arr["nav_icon_color"]   = Config::get('frio', 'nav_icon_color');
+	$arr["link_color"]       = Config::get('frio', 'link_color');
+	$arr["bgcolor"]          = Config::get('frio', 'background_color');
+	$arr["contentbg_transp"] = Config::get('frio', 'contentbg_transp');
+	$arr["background_image"] = Config::get('frio', 'background_image');
+	$arr["bg_image_option"]  = Config::get('frio', 'bg_image_option');
+
+	return frio_form($arr);
+}
 
 function frio_form($arr) {
 	require_once("view/theme/frio/php/schema.php");
diff --git a/view/theme/frio/css/style.css b/view/theme/frio/css/style.css
index f15faf3896..ab8e3d5a53 100644
--- a/view/theme/frio/css/style.css
+++ b/view/theme/frio/css/style.css
@@ -2817,6 +2817,14 @@ section.help-content-wrapper li {
     font-size: 0.96em;
 }
 
+/*Admin Page*/
+#adminpage #frio_background_image .image-select {
+    display: none;
+}
+#adminpage #frio_background_image.input-group {
+    display: block;
+}
+
 /* Register Page*/
 #register-openid-wrapper, #register-name-wrapper, #register-invite-wrapper, #profile-publish-wrapper {
     margin-top: 20px;
diff --git a/view/theme/frio/style.php b/view/theme/frio/style.php
index 041f890e29..7b1b8a350d 100644
--- a/view/theme/frio/style.php
+++ b/view/theme/frio/style.php
@@ -1,6 +1,7 @@
 <?php
 require_once 'view/theme/frio/php/PHPColors/Color.php';
 
+use Friendica\Core\Config;
 use Friendica\Core\PConfig;
 
 $schemecss = "";
@@ -29,6 +30,25 @@ if (! $a->install) {
 		if (empty($modified)) {
 			PConfig::set($uid, 'frio', 'css_modified', time());
 		}
+	} else {
+		Config::load('frio');
+
+		// Load frios system config.
+		$schema           = Config::get("frio", "schema");
+		$nav_bg           = Config::get("frio", "nav_bg");
+		$nav_icon_color   = Config::get("frio", "nav_icon_color");
+		$link_color       = Config::get("frio", "link_color");
+		$bgcolor          = Config::get("frio", "background_color");
+		$contentbg_transp = Config::get("frio", "contentbg_transp");
+		$background_image = Config::get("frio", "background_image");
+		$bg_image_option  = Config::get("frio", "bg_image_option");
+		$modified         = Config::get("frio", "css_modified");
+
+		// There is maybe the case that the user did never modify the theme settings.
+		// In this case we store the present time.
+		if (empty($modified)) {
+			Config::set('frio', 'css_modified', time());
+		}
 	}
 }