diff --git a/README.md b/README.md
index a34adf1..4f9d085 100644
--- a/README.md
+++ b/README.md
@@ -16,18 +16,20 @@ git clone https://forge.cadoles.com/wpetit/pitaya.git
 cd pitaya
 git checkout develop
 npm install
-DEBUG=pitaya* NODE_ENV=development npm start
+PITAYA_LOG_LEVEL=debug NODE_ENV=development npm start
 ```
 
 ## Variables d'environnement
 
 Vous pouvez configurer le comportement de Pitaya en passant des variables d'environnement:
 
-| Variable          | Description                        | Valeurs possibles | Valeur par défaut      |
-|-------------------|------------------------------------|-------------------|------------------------|
-| PITAYA_MODE       | Mode d'exécution de Pitaya         | launcher, edit    | launcher               |
-| PITAYA_PROFILE    | Chemin du fichier profil à charger | --                | ./default-profile.json |
-| PITAYA_AS_DESKTOP | Afficher Pitaya en mode "Bureau"   | 1, 0              | 0                      |
+| Variable          | Description                            | Valeurs possibles             | Valeur par défaut             |
+|-------------------|----------------------------------------|-------------------------------|-------------------------------|
+| PITAYA_MODE       | Mode d'exécution de Pitaya             | launcher, edit                | launcher                      |
+| PITAYA_PROFILE    | Chemin du fichier profil à charger     | --                            | ./default-profile.json        |
+| PITAYA_AS_DESKTOP | Afficher Pitaya en mode "Bureau"       | 1, 0                          | 0                             |
+| PITAYA_LOG_FILE   | Enregistrer les logs dans un fichier   | Chemin absolu vers un fichier | aucune (pas d'enregistrement) |
+| PITAYA_LOG_LEVEL  | Niveau de log                          | debug, info, error, fatal     | info                          |
 
 ## Comment construire l'application depuis les sources
 
diff --git a/css/style.css b/css/style.css
index 6f81888..9282d28 100644
--- a/css/style.css
+++ b/css/style.css
@@ -190,6 +190,7 @@ html, body {
   width: 100%;
   height: 100%;
   flex-direction: column;
+  background-color: #f7f7f7;
 }
 
 .edit .title {
diff --git a/default-profile.json b/default-profile.json
index 4bf6228..e166422 100644
--- a/default-profile.json
+++ b/default-profile.json
@@ -57,4 +57,4 @@
     }
   ],
   "_key": "item_1444480285021_0"
-}
\ No newline at end of file
+}
diff --git a/main.js b/main.js
index ee5310c..8c4221f 100644
--- a/main.js
+++ b/main.js
@@ -2,7 +2,7 @@ var app = require('app');  // Module to control application life.
 var BrowserWindow = require('browser-window');  // Module to create native browser window.
 var Menu = require('menu');
 var isDev = process.env.NODE_ENV === 'development';
-var constants = require('./'+(isDev ? 'src': 'dist')+'/util/const');
+var constants = require('./'+(isDev ? 'src': 'dist')+'/util').Const;
 
 var mainWindow = null;
 
@@ -14,7 +14,7 @@ app.on('window-all-closed', function() {
 app.on('ready', function() {
   // Create the browser window.
   var electronScreen = require('screen');
-  var size = electronScreen.getPrimaryDisplay().size;
+  var workArea = electronScreen.getPrimaryDisplay().workArea;
 
   var asDesktop = process.env.PITAYA_AS_DESKTOP == 1;
 
@@ -22,11 +22,11 @@ app.on('ready', function() {
     type:  asDesktop ? 'desktop' : undefined,
     'skip-taskbar': asDesktop,
     frame: !asDesktop,
-    width: asDesktop ? size.width : undefined,
-    height: asDesktop ? size.height : undefined,
+    width: asDesktop ? workArea.width : undefined,
+    height: asDesktop ? workArea.height : undefined,
     'auto-hide-menu-bar': true,
-    x: asDesktop ? 0 : undefined,
-    y: asDesktop ? 0 : undefined,
+    x: asDesktop ? workArea.x : undefined,
+    y: asDesktop ? workArea.y : undefined,
   });
 
   if(isDev) {
diff --git a/package.json b/package.json
index 50c7061..7c02a5f 100644
--- a/package.json
+++ b/package.json
@@ -31,6 +31,7 @@
     "react-dom": "^0.14.0",
     "react-redux": "^2.0.0",
     "redux": "^2.0.0",
-    "redux-thunk": "^0.1.0"
+    "redux-thunk": "^0.1.0",
+    "winston": "^1.1.2"
   }
 }
diff --git a/src/components/common/app-icon.js b/src/components/common/app-icon.js
index 0e8b6d9..4e49a5c 100644
--- a/src/components/common/app-icon.js
+++ b/src/components/common/app-icon.js
@@ -1,7 +1,7 @@
 var React = require('react');
 var Util = require('../../util');
 var LazyLoad = require('../mixins/lazy-load');
-var debug = Util.Debug('common:app-icon');
+var logger = Util.Logger;
 var _ = require('lodash');
 
 var LOADING_ICON = 'img/hourglass.svg';
@@ -66,7 +66,7 @@ module.exports = React.createClass({
 
     var self = this;
 
-    debug('Search icon %s:%s', iconPath, theme);
+    logger.debug('Search icon %s:%s', iconPath, theme);
 
     Util.DesktopApps.findIcon(iconPath || DEFAULT_ICON, theme)
       .then(function(iconPath) {
@@ -78,7 +78,7 @@ module.exports = React.createClass({
         ;
       })
       .then(function(iconPath) {
-        debug('Found icon %s', iconPath);
+        logger.debug('Found icon %s', iconPath);
         self.setState({ iconPath: iconPath });
       })
     ;
diff --git a/src/components/edit/desktop-app-list.js b/src/components/edit/desktop-app-list.js
index e080b33..807636f 100644
--- a/src/components/edit/desktop-app-list.js
+++ b/src/components/edit/desktop-app-list.js
@@ -1,8 +1,6 @@
 var React = require('react');
-var Util = require('../../util');
 var DesktopAppItem = require('./desktop-app-item.js');
 var path = require('path');
-var debug = require('../../util/debug')('pitaya:desktop-app-list');
 
 var DesktopAppList = React.createClass({
 
diff --git a/src/components/launcher/launcher-view.js b/src/components/launcher/launcher-view.js
index 44a2748..975d330 100644
--- a/src/components/launcher/launcher-view.js
+++ b/src/components/launcher/launcher-view.js
@@ -5,7 +5,7 @@ var Nav = require('./nav.js');
 var AnimateMixin = require('../mixins/animate');
 var actions = require('../../store/actions');
 var connect = require('react-redux').connect;
-var debug = require('../../util/debug')('launcher-view');
+var logger = require('../../util/logger');
 var CrossfadeImage = require('../common/crossfade-image');
 var path = require('path');
 
@@ -90,7 +90,7 @@ var LauncherView = React.createClass({
 
     if(item.exec) {
 
-      debug('Launching application "'+item.exec+'"...');
+      logger.debug('Launching application "'+item.exec+'"...');
       var el = evt.currentTarget;
       el.classList.add('pulse');
 
diff --git a/src/store/actions/common.js b/src/store/actions/common.js
index c3002a9..2f02acb 100644
--- a/src/store/actions/common.js
+++ b/src/store/actions/common.js
@@ -10,8 +10,11 @@ exports.loadProfile = function(profilePath) {
 
     dispatch({ type: LOAD_PROFILE, profilePath: profilePath });
 
+    Util.Logger.info('Loading profile "%s"', profilePath);
+
     return Util.System.loadJSON(profilePath)
       .then(function(profile) {
+        Util.Logger.info('Profile loaded.');
         dispatch({ type: LOAD_PROFILE_SUCCESS, profile: profile });
         return profile;
       })
diff --git a/src/store/actions/edit.js b/src/store/actions/edit.js
index 5f41925..82a916a 100644
--- a/src/store/actions/edit.js
+++ b/src/store/actions/edit.js
@@ -1,4 +1,5 @@
 var Util = require('../../util');
+var logger = Util.Logger;
 var path = require('path');
 var _ = require('lodash');
 
@@ -21,8 +22,11 @@ var UPDATE_PROFILE_ITEM = exports.UPDATE_PROFILE_ITEM = 'UPDATE_PROFILE_ITEM';
 // Actions creators
 
 exports.loadDesktopApps = function() {
+
   return function(dispatch, getState) {
 
+    logger.info('Loading desktop apps...');
+
     var baseDirs = global.process.env.XDG_DATA_DIRS.split(':').map(function(baseDir){
       return path.join(baseDir, 'applications');
     });
@@ -31,6 +35,7 @@ exports.loadDesktopApps = function() {
 
     return Util.DesktopApps.loadAllDesktopFiles(baseDirs)
       .then(function(desktopApps) {
+        logger.info('Desktop apps loaded.');
         dispatch({ type: LOAD_DESKTOP_APPS_SUCCESS, desktopApps: desktopApps });
       })
       .catch(function(err) {
@@ -46,6 +51,8 @@ exports.saveProfile = function(destPath, profile) {
 
     dispatch({ type: SAVE_PROFILE, profile: profile, path: destPath });
 
+    logger.info('Saving profile to "%s"...', destPath);
+
     var cleanedProfile = _.cloneDeep(profile);
 
     Util.Tree.walk(cleanedProfile, function(item) {
@@ -56,6 +63,7 @@ exports.saveProfile = function(destPath, profile) {
     return Util.System.saveJSON(destPath, cleanedProfile)
       .then(function() {
         dispatch({ type: SAVE_PROFILE_SUCCESS, profile: profile, path: destPath });
+        logger.info('Profile saved.');
       })
       .catch(function(err) {
         dispatch({ type: SAVE_PROFILE_FAILED, error: err });
diff --git a/src/store/actions/launcher.js b/src/store/actions/launcher.js
index cf9eded..f6e9abb 100644
--- a/src/store/actions/launcher.js
+++ b/src/store/actions/launcher.js
@@ -1,4 +1,5 @@
 var Util = require('../../util');
+var logger = Util.Logger;
 
 var RUN_APP = exports.RUN_APP = 'RUN_APP';
 var RUN_APP_SUCCESS = exports.RUN_APP_SUCCESS = 'RUN_APP_SUCCESS';
@@ -8,6 +9,8 @@ exports.runApp = function(execPath) {
 
   return function(dispatch, getState) {
 
+    logger.info('Launching app "%s"', execPath);
+
     dispatch({ type: RUN_APP, execPath: execPath });
 
     return Util.System.runApp(execPath, { clearFreeDesktopFlags: true })
diff --git a/src/store/middlewares/logger.js b/src/store/middlewares/logger.js
index 0982a90..fdeaf81 100644
--- a/src/store/middlewares/logger.js
+++ b/src/store/middlewares/logger.js
@@ -1,14 +1,14 @@
-var debug = require('../../util/debug')('store:logger');
+var logger = require('../../util').Logger;
+var app = require('../../util').App;
 
 module.exports = function loggerMiddleware(store) {
   return function(next) {
     return function(action) {
-      debug('Action %j', action);
-      //debug('Store current state %j', store.getState());
+      logger.debug('Action', action);
       next(action);
-      //debug('Store new state %j', store.getState());
       if(action.error) {
-        console.error(action.error.stack || action.error);
+        logger.error(action.type, action.error);
+        return app.quit(1);
       }
     };
   };
diff --git a/src/util/app.js b/src/util/app.js
new file mode 100644
index 0000000..e1efa7b
--- /dev/null
+++ b/src/util/app.js
@@ -0,0 +1,21 @@
+var ipc = require('ipc');
+var isMainProcess = process.type === 'browser';
+
+var QUIT_CMD = 'app-util:quit';
+
+exports.quit = function(exitCode) {
+  if(isMainProcess) {
+    process.exit(exitCode);
+  } else {
+    ipc.send(QUIT_CMD, exitCode);
+  }
+};
+
+// Main process, setup listeners
+if(isMainProcess) {
+
+  ipc.on(QUIT_CMD, function(evt, exitCode) {
+    exports.quit(exitCode);
+  });
+
+}
diff --git a/src/util/debug.js b/src/util/debug.js
deleted file mode 100644
index b931e3f..0000000
--- a/src/util/debug.js
+++ /dev/null
@@ -1,7 +0,0 @@
-var debug = require('debug');
-var util = require('util');
-
-module.exports = function createLogger(namespace) {
-  var logger = debug('pitaya:'+namespace);
-  return logger;
-};
diff --git a/src/util/desktop-apps.js b/src/util/desktop-apps.js
index 3645c9c..d6a6b69 100644
--- a/src/util/desktop-apps.js
+++ b/src/util/desktop-apps.js
@@ -1,6 +1,6 @@
 var path = require('path');
 var System = require('./system');
-var debug = require('./debug')('desktop-apps');
+var logger = require('./logger');
 var Cache = require('./cache');
 var promises = require('./promises');
 
@@ -80,18 +80,18 @@ exports.findIcon = function(iconName, themeName, size, themeIgnore) {
   var cachedIcon = iconCache.get([iconName, themeName, size]);
 
   if(cachedIcon) {
-    debug('Icon %s:%s:%s found in cache !', iconName, themeName, size);
+    logger.debug('Icon %s:%s:%s found in cache !', iconName, themeName, size);
     return Promise.resolve(cachedIcon);
   }
 
   themeIgnore = themeIgnore || [];
   if(themeIgnore.indexOf(themeIgnore) !== -1) {
-    debug('Theme %s already processed, ignoring...', themeName);
+    logger.debug('Theme %s already processed, ignoring...', themeName);
     return Promise.resolve(null);
   }
   themeIgnore.push(themeName);
 
-  debug('Finding icon %s:%s:%s...', iconName, themeName, size);
+  logger.debug('Searching icon %s:%s:%s...', iconName, themeName, size);
 
   if( ICON_REALPATH_REGEX.test(iconName) ) {
     return Promise.resolve(iconName);
@@ -116,7 +116,7 @@ exports.findIcon = function(iconName, themeName, size, themeIgnore) {
 
       if(foundIcon) return foundIcon;
 
-      debug('No icon found. Search in parents...');
+      logger.debug('No icon found. Search in parents...');
 
       return exports.findParentsThemeIcon(iconName, themeName, size, themeIgnore)
         .then(function(iconPath) {
@@ -154,7 +154,7 @@ exports.findParentsThemeIcon = function(iconName, themeName, size, themeIgnore)
 
           var parents = themeIndex['Icon Theme'].Inherits.split(',');
 
-          debug('Found parents %j', parents);
+          logger.debug('Found parents', {parents: parents});
 
           return promises.seq(parents, function(themeName) {
               return exports.findIcon(iconName, themeName, size, themeIgnore);
@@ -177,16 +177,16 @@ exports.findClosestSizeIcon = function(iconName, themeName, size) {
   var extPattern = '{svg,png}';
   var filePattern = themeName+'/*/*/'+iconName+'.'+extPattern;
 
-  debug('File pattern %s', filePattern);
+  logger.debug('File pattern %s', filePattern);
 
   return System.findFiles(filePattern, {cwd: ICON_THEMES_ROOTDIR})
     .then(function(iconFiles) {
 
-      debug('Found files %j', iconFiles);
+      logger.debug('Found files', {files: iconFiles});
 
       var scalableIcon = iconFiles.reduce(function(scalableIcon, iconPath) {
         if(iconPath.indexOf('scalable') !== -1) {
-          debug('Found scalable icon %s', iconPath);
+          logger.debug('Found scalable icon %s', iconPath);
           scalableIcon = iconPath;
         }
         return scalableIcon;
@@ -211,7 +211,7 @@ exports.findClosestSizeIcon = function(iconName, themeName, size) {
 
     })
     .then(function(iconPath) {
-      debug('Closest icon %j', iconPath);
+      logger.debug('Closest icon', iconPath);
       return iconPath ? path.join(ICON_THEMES_ROOTDIR, iconPath) : null;
     })
   ;
@@ -229,7 +229,7 @@ exports.findClosestSizeIcon = function(iconName, themeName, size) {
 
 exports.findPixmapsIcon = function(iconName) {
   var filePattern = iconName+'.{svg,png}';
-  debug('Looking for pixmap icon %s', filePattern);
+  logger.debug('Looking for pixmap icon %s', filePattern);
   return System.findFiles(filePattern, {cwd: PIXMAPS_ICONS_ROOTDIR})
     .then(function(iconPaths) {
       iconPaths = iconPaths.map(function(iconPath) {
@@ -268,7 +268,7 @@ exports._selectBestIcon = function(iconPaths) {
     }
     return iconSelection;
   }, {scalable: null, bitmap: null});
-  debug('Icon selection %j', iconSelection);
+  logger.debug('Icon selection', iconSelection);
   return iconSelection.scalable || iconSelection.bitmap;
 };
 
diff --git a/src/util/index.js b/src/util/index.js
index 9070008..97f1641 100644
--- a/src/util/index.js
+++ b/src/util/index.js
@@ -1,7 +1,8 @@
 exports.System = require('./system');
 exports.DesktopApps = require('./desktop-apps');
 exports.Cache = require('./cache');
-exports.Debug = require('./debug');
+exports.Logger = require('./logger');
 exports.Tree = require('./tree');
 exports.Const = require('./const');
 exports.Promises = require('./promises');
+exports.App = require('./app');
diff --git a/src/util/logger.js b/src/util/logger.js
new file mode 100644
index 0000000..0409507
--- /dev/null
+++ b/src/util/logger.js
@@ -0,0 +1,18 @@
+var winston = require('winston');
+var logger = new winston.Logger({ exitOnError: true });
+
+var logLevel = process.env.PITAYA_LOG_LEVEL || 'info';
+var logFile = process.env.PITAYA_LOG_FILE;
+
+logger.level = logLevel;
+
+logger.add(winston.transports.Console, { colorize: true });
+
+if(logFile) {
+  logger.add(winston.transports.File, {
+    filename: logFile,
+    json: false
+  });
+}
+
+module.exports = logger;