diff --git a/freon@UshakovVasilii_Github.yahoo.com/extension.js b/freon@UshakovVasilii_Github.yahoo.com/extension.js
index 13931e4..7f8e347 100644
--- a/freon@UshakovVasilii_Github.yahoo.com/extension.js
+++ b/freon@UshakovVasilii_Github.yahoo.com/extension.js
@@ -385,9 +385,9 @@ const FreonMenuButton = GObject.registerClass(class Freon_FreonMenuButton extend
             for (let i of tempInfo){
                 if(i.temp !== null && i.temp >= 0){
                     total++;
-    	            sum += i.temp;
-    	            if (i.temp > max)
-    	                max = i.temp;
+                    sum += i.temp;
+                    if (i.temp > max)
+                        max = i.temp;
                 }
             }
 
@@ -613,13 +613,13 @@ const FreonMenuButton = GObject.registerClass(class Freon_FreonMenuButton extend
                     if(!temperatureGroup) {
                         temperatureGroup = new PopupMenu.PopupSubMenuMenuItem(_('Temperature Sensors'), true);
                         temperatureGroup.icon.gicon = this._sensorIcons['temperature'];
-			if(!temperatureGroup.status) { // gnome 3.18 and hight
+                        if(!temperatureGroup.status) { // gnome 3.18 and hight
                             temperatureGroup.status = new St.Label({
-				     style_class: 'popup-status-menu-item',
+                                     style_class: 'popup-status-menu-item',
                                      y_expand: true,
                                      y_align: Clutter.ActorAlign.CENTER });
                             temperatureGroup.actor.insert_child_at_index(temperatureGroup.status, 4);
-			}
+                        }
                         this.menu.addMenuItem(temperatureGroup);
                     }
                     temperatureGroup.menu.addMenuItem(item);
@@ -654,7 +654,7 @@ const FreonMenuButton = GObject.registerClass(class Freon_FreonMenuButton extend
             format = '%.0f';
         }
         format += '%s';
-        
+
         if(this._settings.get_boolean('show-degrees-on-panel')){
             return format.format(value, (this._settings.get_string('unit')=='fahrenheit') ? "\u00b0F" : "\u00b0C" );
         } else {
diff --git a/freon@UshakovVasilii_Github.yahoo.com/nvmecliUtil.js b/freon@UshakovVasilii_Github.yahoo.com/nvmecliUtil.js
index ae2ea93..a475ec3 100644
--- a/freon@UshakovVasilii_Github.yahoo.com/nvmecliUtil.js
+++ b/freon@UshakovVasilii_Github.yahoo.com/nvmecliUtil.js
@@ -14,7 +14,7 @@ var nvmecliUtil  = class {
             this._nvmeDevices = getNvmeData("list")["Devices"]
         } catch (e) {
             global.log('[FREON] Unable to find nvme devices: ' + e);
-        }        
+        }
         this._updated = true;
     }
 
@@ -34,8 +34,8 @@ var nvmecliUtil  = class {
         let sensors = [];
         for (let device of this._nvmeDevices) {
             var smart_log = getNvmeData(`smart-log ${device["DevicePath"]}`);
-	    if( smart_log.hasOwnProperty('temperature_sensor_2') ){
-	        sensors.push({ label: device["ModelNumber"] + " S1",
+            if( smart_log.hasOwnProperty('temperature_sensor_2') ){
+                sensors.push({ label: device["ModelNumber"] + " S1",
                                temp: parseFloat(smart_log.temperature_sensor_1) - 273.15 });
                 sensors.push({ label: device["ModelNumber"] + " S2",
                                temp: parseFloat(smart_log.temperature_sensor_2) - 273.15 });
diff --git a/freon@UshakovVasilii_Github.yahoo.com/prefs.js b/freon@UshakovVasilii_Github.yahoo.com/prefs.js
index c91ace5..8e63e0e 100644
--- a/freon@UshakovVasilii_Github.yahoo.com/prefs.js
+++ b/freon@UshakovVasilii_Github.yahoo.com/prefs.js
@@ -51,10 +51,10 @@ var FreonPrefsWidget = new GObject.registerClass(class Freon_FreonPrefsWidget ex
         let panelBoxIndex = Gtk.SpinButton.new_with_range (-1, 20, 1);
         this.attach(panelBoxIndex, 2, i, 1, 1);
         this._settings.bind('panel-box-index', panelBoxIndex, 'value', Gio.SettingsBindFlags.DEFAULT);
-            
+
         this._addSwitch({key : 'show-degrees-on-panel', y : i++, x : 3,
             label : _('Show \u00b0C/\u00b0F on Panel')});
-            
+
         this._addSwitch({key : 'show-icon-on-panel', y : i++, x : 3,
             label : _('Show Icon on Panel')});
 
@@ -73,7 +73,7 @@ var FreonPrefsWidget = new GObject.registerClass(class Freon_FreonPrefsWidget ex
             help : _("Works if you have more than three voltage sensors")});
 
         this._addComboBox({
-            items : {none : 'None', hddtemp : 'Hddtemp', udisks2 : 'UDisks2', smartctl : 'smartctl', nvmecli : 'nvme-cli'},
+            items : {none : _('None'), hddtemp : 'Hddtemp', udisks2 : 'UDisks2', smartctl : 'smartctl', nvmecli : 'nvme-cli'},
             key: 'drive-utility', y : i, x : 0,
             label: _('HDD/SSD Temperature Utility')
         });
@@ -119,7 +119,7 @@ var FreonPrefsWidget = new GObject.registerClass(class Freon_FreonPrefsWidget ex
         }
 
         combobox.set_active(Object.keys(params.items).indexOf(this._settings.get_string(params.key)));
-        
+
         combobox.connect('changed', (entry) => {
             let [success, iter] = combobox.get_active_iter();
             if (!success)
@@ -130,7 +130,6 @@ var FreonPrefsWidget = new GObject.registerClass(class Freon_FreonPrefsWidget ex
         this.attach(new Gtk.Label({ label: params.label, halign : Gtk.Align.END}), params.x, params.y, 1, 1);
         this.attach(combobox, params.x + 1, params.y, 1, 1);
     }
-
 });
 
 function buildPrefsWidget() {