diff --git a/Gruntfile.js b/Gruntfile.js
index 397e83e..871450c 100644
--- a/Gruntfile.js
+++ b/Gruntfile.js
@@ -60,7 +60,24 @@ module.exports = function (grunt) {
         },
 
         zip: {
-            'release.zip': ['app/**/*', 'bin/**/*', 'bootstrap/**/*', 'logs/**/*', 'resources/**/', 'static/**/*', '.htaccess', 'config.example.php', 'index.php', 'vendor']
+            'release.zip': [
+                'app/**/*',
+                'bin/**/*',
+                'bootstrap/**/*',
+                'logs/**/',
+                'resources/cache',
+                'resources/sessions',
+                'resources/database',
+                'resources/templates/**/*',
+                'resources/schemas/**/*',
+                'static/**/*',
+                'vendor/**/*',
+                '.htaccess',
+                'config.example.php',
+                'index.php',
+                'composer.json',
+                'composer.lock'
+            ]
         }
 
     });
diff --git a/app/Database/DB.php b/app/Database/DB.php
index f3b9391..9d77303 100644
--- a/app/Database/DB.php
+++ b/app/Database/DB.php
@@ -116,7 +116,7 @@ class DB
 	 * @param string|null $username
 	 * @param string|null $password
 	 */
-	public static function setDsn(string $dsn, string $username = null, string $password = null): void
+	public static function setDsn(string $dsn, string $username = null, string $password = null)
 	{
 		self::$dsn = $dsn;
 		self::$username = $username;
diff --git a/bin/theme b/bin/theme
index 43d391d..129f8d8 100644
--- a/bin/theme
+++ b/bin/theme
@@ -10,19 +10,24 @@ if (php_sapi_name() !== 'cli') {
 $json = json_decode(file_get_contents('https://bootswatch.com/api/4.json'));
 
 if (!isset($argv[1])) {
-	echo 'Usage: php bin\\theme <theme-name>' . PHP_EOL;
+	echo 'Usage: php bin\\theme <theme-name|"default">' . PHP_EOL;
 	echo 'Here a list of available Bootswatch themes:' . PHP_EOL;
 }
 
-foreach ($json->themes as $theme) {
-	if (isset($argv[1]) && strtolower($argv[1]) === strtolower($theme->name)) {
-        file_put_contents('static/bootstrap/css/bootstrap.min.css', file_get_contents($theme->cssMin));
-		echo "Installed theme {$theme->name}." . PHP_EOL;
-		break;
-	}
+if (isset($argv[1]) && strtolower($argv[1]) === 'default') {
+	file_put_contents('static/bootstrap/css/bootstrap.min.css', file_get_contents('https://bootswatch.com/_vendor/bootstrap/dist/css/bootstrap.min.css'));
+	echo "Reverted to default theme." . PHP_EOL;
+} else {
+	foreach ($json->themes as $theme) {
+		if (isset($argv[1]) && strtolower($argv[1]) === strtolower($theme->name)) {
+			file_put_contents('static/bootstrap/css/bootstrap.min.css', file_get_contents($theme->cssMin));
+			echo "Installed theme {$theme->name}." . PHP_EOL;
+			break;
+		}
 
-	if (!isset($argv[1])) {
-		echo "  - {$theme->name} ({$theme->description})[Preview: {$theme->preview}]" . PHP_EOL;
+		if (!isset($argv[1])) {
+			echo "  - {$theme->name} ({$theme->description})[Preview: {$theme->preview}]" . PHP_EOL;
+		}
 	}
 }