feat(App): manage relative dirs

App.php

@@ -33,6 +33,16 @@ set_error_handler(function (
 
 class App 
 {
+    /**
+     * plugins path in vendor
+     * @var string
+     */
+    public const PLUGINS_PATH = 'vendor/picocms/plugins/';
+    /**
+     * themes path in vendor
+     * @var string
+     */
+    public const THEMES_PATH = 'vendor/picocms/themes/';
     /**
      * Pico instance.
      * @var Pico
@@ -61,13 +71,22 @@ class App
         $this->pico = new Pico(
             $cwd,    // root dir
             $contentFolderFromRoot,  // config dir
-            'vendor/picocms/plugins/', // plugins dir
-            'vendor/picocms/themes/'   // themes dir
+            self::PLUGINS_PATH, // plugins dir
+            self::THEMES_PATH   // themes dir
         );
     }
 
     public function runPico(): string
     {
+        if (!empty($GLOBALS['PicoVendorsDirectoryRelativeLevels']) && 
+            intval($GLOBALS['PicoVendorsDirectoryRelativeLevels']) > 0){
+            $previous = implode('',array_fill(0,intval($GLOBALS['PicoVendorsDirectoryRelativeLevels']),'../'));
+            $this->pico->setConfig([
+                'themes_url' => $previous.self::THEMES_PATH,
+                'plugins_url' => $previous.self::PLUGINS_PATH
+            ]);
+            
+        }
         return $this->pico->run();
     }