Index: gc_lang/fr/webext/panel/main.css
==================================================================
--- gc_lang/fr/webext/panel/main.css
+++ gc_lang/fr/webext/panel/main.css
@@ -117,14 +117,18 @@
     text-align: center;
     cursor: pointer;
     color: hsl(210, 10%, 50%);
     font-size: 20px;
 }
+.invisible {
+    opacity: .05;
+}
 #menu .select_block:hover {
-    background-color: hsl(210, 10%, 92%);
+    background-color: hsl(210, 20%, 92%);
     color: hsl(210, 80%, 50%);
     text-shadow: 0px 0px 1px hsl(210, 100%, 70%);
+    opacity: 1;
 }
 .select_label {
     font-size: 12px;
     font-variant-caps: small-caps;
 }

Index: gc_lang/fr/webext/panel/main.html
==================================================================
--- gc_lang/fr/webext/panel/main.html
+++ gc_lang/fr/webext/panel/main.html
@@ -34,11 +34,11 @@
             </div>
             <div class="select select_block" data-page="info_page">
               <p class="select" data-page="info_page"><i class="select select_icon fa fa-info-circle" data-page="info_page"></i></p>
               <p class="select select_label" data-page="info_page">Informations</p>
             </div>
-            <div class="select select_block" data-page="test_page">
+            <div class="select select_block invisible" data-page="test_page">
               <p class="select" data-page="test_page"><i class="select select_icon fa fa-flask" data-page="test_page"></i></p>
               <p class="select select_label" data-page="test_page">Zone de test</p>
             </div>
           </ul>
         </nav>