Add config to config file

config/services.yaml

@@ -6,6 +6,16 @@ services:
     pcm_icon.icon_extension:
         public: true
         class: Pcm\IconBundle\Twig\Functions\IconExtension
+        args:
+            directories:
+                - '%kernel.project_dir%/public/icons'
+            palletes:
+                - primary:
+                    stroke: stroke-primary,
+                    fill: fill-primary
+                - white:
+                    stroke: stroke-white,
+                    fill: fill-white
 
     Pcm\IconBundle\Twig\Functions\IconExtension:
         public: false