diff --git a/site/public/javascript/controllers/project.js b/site/public/javascript/controllers/project.js
index 6b74596..9126823 100644
--- a/site/public/javascript/controllers/project.js
+++ b/site/public/javascript/controllers/project.js
@@ -29,7 +29,12 @@ application.controller(
                 $scope.always_last_version = !$scope.always_last_version;
             };
 
-            $scope.mark_all_as_read = function()
+            $scope.show_differences_toggle_click = function()
+            {
+                $scope.show_differences = !$scope.show_differences;
+            };
+
+            $scope.mark_all_as_read_click = function()
             {
                 // Each file
                 for( var _file_key in project.files )
@@ -74,6 +79,8 @@ application.controller(
 
                 version.active = true;
                 $scope.version = version;
+
+                $scope.file.notif = 0;
             };
 
             $scope.init = function( project_slug )
@@ -103,6 +110,8 @@ application.controller(
 
                             $scope.version = data.version;
                             $scope.version.active = true;
+
+                            $scope.file.notif = 0;
                         } );
                     }
                 }
@@ -111,6 +120,7 @@ application.controller(
             $scope.project             = project;
             $scope.file                = null;
             $scope.always_last_version = true;
+            $scope.show_differences    = true;
             $scope.version             = null;
         }
     ]
diff --git a/site/public/stylesheets/style.css b/site/public/stylesheets/style.css
index ce384fc..38b0672 100644
--- a/site/public/stylesheets/style.css
+++ b/site/public/stylesheets/style.css
@@ -32,7 +32,10 @@ section.page-project .aside .aside-header {padding:10px;background:#3b3f4e;}
 section.page-project .aside .aside-header .always-last-version-toggle {cursor:pointer;}
 section.page-project .aside .aside-header .always-last-version-toggle .switch {display:inline-block;width:12px;height:12px;border:1px solid #f1f5ff;}
 section.page-project .aside .aside-header .always-last-version-toggle.active .switch {background:#f1f5ff;}
-section.page-project .aside .aside-tree {position:absolute;top:48px;left:0;bottom:0;width:100%;overflow:auto;}
+section.page-project .aside .aside-header .show-differences-toggle {cursor:pointer;}
+section.page-project .aside .aside-header .show-differences-toggle .switch {display:inline-block;width:12px;height:12px;border:1px solid #f1f5ff;}
+section.page-project .aside .aside-header .show-differences-toggle.active .switch {background:#f1f5ff;}
+section.page-project .aside .aside-tree {position:absolute;top:76px;left:0;bottom:0;width:100%;overflow:auto;}
 section.page-project section.main {position:absolute;top:0;right:0;bottom:0;left:240px;}
 section.page-project section.no-file {position:absolute;top:0;right:0;bottom:0;left:0;}
 section.page-project section.file {position:absolute;top:0;right:0;bottom:0;left:0;}
@@ -45,8 +48,9 @@ section.page-project section.file .code pre {position:relative;overflow:hidden;}
 section.page-project section.file .code pre code {line-height:20px;font-family:monospace;}
 section.page-project section.file .code pre code.lines {position:absolute;top:0;left:0;width:38px;padding:0.5em;opacity:0.2;}
 section.page-project section.file .code pre code.hljs {margin-left:38px;}
-section.page-project section.file .code pre code.differences {position:absolute;top:0;left:38px;padding:0.5em;}
-section.page-project section.file .code pre code.differences .value {opacity:0.4;}
+section.page-project section.file .code pre code.differences {position:absolute;top:0;left:38px;padding:0.5em;pointer-events:none;}
+section.page-project section.file .code pre code.differences.inactive {display:none;}
+section.page-project section.file .code pre code.differences .value {visibility:hidden;}
 section.page-project section.file .code pre code.differences span.removed {display:none;border:1px solid red;}
 section.page-project section.file .code pre code.differences span.removed .value {display:none;}
 section.page-project section.file .code pre code.differences span.added {border:1px solid #b0ea23;background:rgba(176, 234, 35, 0.1);}
diff --git a/site/views/pages/index/project.jade b/site/views/pages/index/project.jade
index 24ecda5..ab6e05a 100644
--- a/site/views/pages/index/project.jade
+++ b/site/views/pages/index/project.jade
@@ -24,8 +24,11 @@ section.page-project(ng-controller="ProjectController as controller",ng-init="in
                 | {{project.name}}
             div.always-last-version-toggle(ng-click="always_last_version_toggle_click()",ng-class="always_last_version ? 'active' : 'inactive'")
                 .switch
-                | always last version
-            div.mark-all-as-read(ng-click="mark_all_as_read()")
+                | Always last version
+            div.show-differences-toggle(ng-click="show_differences_toggle_click()",ng-class="show_differences ? 'active' : 'inactive'")
+                .switch
+                | Show differences
+            div.mark-all-as-read(ng-click="mark_all_as_read_click()")
                 | Mark all as read
         .aside-tree
             nav.files-tree-nav
@@ -56,7 +59,7 @@ section.page-project(ng-controller="ProjectController as controller",ng-init="in
                             .line= line_index++
                     code(hljs,hljs-source="version.content")
                         | {{ version.content }}
-                    code.differences(ng-if="version.diff")
+                    code.differences(ng-if="version.diff",ng-class="show_differences ? 'active' : 'inactive'")
                         span(ng-repeat="_difference in version.diff",ng-class="{removed: _difference.removed, added: _difference.added}")
                             span.value
                                 | {{ _difference.value }}