diff --git a/Settings.ui b/Settings.ui
index 562890d..fb17bb6 100644
--- a/Settings.ui
+++ b/Settings.ui
@@ -246,12 +246,24 @@
     <property name="step_increment">1</property>
     <property name="page_increment">5</property>
   </object>
+  <object class="GtkAdjustment" id="leftbox_size_adjustment">
+    <property name="lower">0.33000000000000002</property>
+    <property name="upper">1</property>
+    <property name="step_increment">0.01</property>
+    <property name="page_increment">0.10000000000000001</property>
+  </object>
   <object class="GtkAdjustment" id="panel_size_adjustment">
     <property name="lower">0.33000000000000002</property>
     <property name="upper">1</property>
     <property name="step_increment">0.01</property>
     <property name="page_increment">0.10000000000000001</property>
   </object>
+  <object class="GtkAdjustment" id="tray_size_adjustment">
+    <property name="lower">0.33000000000000002</property>
+    <property name="upper">1</property>
+    <property name="step_increment">0.01</property>
+    <property name="page_increment">0.10000000000000001</property>
+  </object>
   <object class="GtkNotebook" id="settings_notebook">
     <property name="visible">True</property>
     <property name="can_focus">True</property>
@@ -259,7 +271,6 @@
     <property name="margin_right">6</property>
     <property name="margin_top">6</property>
     <property name="margin_bottom">6</property>
-    <property name="show_tabs">False</property>
     <child>
       <object class="GtkBox" id="position_and_size">
         <property name="visible">True</property>
@@ -389,7 +400,6 @@
                 <child>
                   <object class="GtkListBoxRow" id="panel_size_listboxrow">
                     <property name="width_request">100</property>
-                    <property name="height_request">80</property>
                     <property name="visible">True</property>
                     <property name="can_focus">True</property>
                     <child>
@@ -506,24 +516,6 @@
                           <packing>
                             <property name="left_attach">1</property>
                             <property name="top_attach">0</property>
-                            <property name="height">2</property>
-                          </packing>
-                        </child>
-                        <child>
-                          <object class="GtkLabel" id="shrink_dash_description1">
-                            <property name="visible">True</property>
-                            <property name="can_focus">False</property>
-                            <property name="hexpand">True</property>
-                            <property name="label" translatable="yes">If disabled, these settings are acccessible from gnome-tweak-tool or the extension website.</property>
-                            <property name="wrap">True</property>
-                            <property name="xalign">0</property>
-                            <style>
-                              <class name="dim-label"/>
-                            </style>
-                          </object>
-                          <packing>
-                            <property name="left_attach">0</property>
-                            <property name="top_attach">1</property>
                           </packing>
                         </child>
                         <child>
@@ -540,22 +532,6 @@
                             <property name="top_attach">0</property>
                           </packing>
                         </child>
-                        <child>
-                          <object class="GtkCheckButton" id="application_button_first_button">
-                            <property name="label" translatable="yes">Move the applications button at the beginning of the panel.</property>
-                            <property name="visible">True</property>
-                            <property name="can_focus">True</property>
-                            <property name="receives_default">False</property>
-                            <property name="margin_top">12</property>
-                            <property name="xalign">0</property>
-                            <property name="draw_indicator">True</property>
-                          </object>
-                          <packing>
-                            <property name="left_attach">0</property>
-                            <property name="top_attach">2</property>
-                            <property name="width">2</property>
-                          </packing>
-                        </child>
                         <child>
                           <object class="GtkCheckButton" id="application_button_animation_button">
                             <property name="visible">True</property>
@@ -563,7 +539,7 @@
                             <property name="receives_default">False</property>
                             <property name="margin_top">3</property>
                             <property name="xalign">0</property>
-                            <property name="yalign">0.43000000715255737</property>
+                            <property name="yalign">0.5</property>
                             <property name="draw_indicator">True</property>
                             <child>
                               <object class="GtkLabel" id="label3">
@@ -576,10 +552,12 @@
                           </object>
                           <packing>
                             <property name="left_attach">0</property>
-                            <property name="top_attach">3</property>
-                            <property name="width">2</property>
+                            <property name="top_attach">1</property>
                           </packing>
                         </child>
+                        <child>
+                          <placeholder/>
+                        </child>
                       </object>
                     </child>
                   </object>
@@ -601,7 +579,6 @@
         </child>
         <child>
           <object class="GtkFrame" id="built_in_theme_frame3">
-            <property name="visible">True</property>
             <property name="can_focus">False</property>
             <property name="label_xalign">0</property>
             <property name="shadow_type">in</property>
@@ -742,10 +719,131 @@
       </packing>
     </child>
     <child>
-      <placeholder/>
+      <object class="GtkBox" id="appearance">
+        <property name="visible">True</property>
+        <property name="can_focus">False</property>
+        <property name="margin_left">24</property>
+        <property name="margin_right">24</property>
+        <property name="margin_top">24</property>
+        <property name="margin_bottom">24</property>
+        <property name="orientation">vertical</property>
+        <property name="spacing">24</property>
+        <child>
+          <object class="GtkFrame" id="content_size_frame">
+            <property name="visible">True</property>
+            <property name="can_focus">False</property>
+            <property name="label_xalign">0</property>
+            <property name="shadow_type">in</property>
+            <child>
+              <object class="GtkListBox" id="listbox1">
+                <property name="visible">True</property>
+                <property name="can_focus">True</property>
+                <property name="selection_mode">none</property>
+                <child>
+                  <object class="GtkListBoxRow" id="listboxrow1">
+                    <property name="width_request">100</property>
+                    <property name="visible">True</property>
+                    <property name="can_focus">True</property>
+                    <child>
+                      <object class="GtkGrid" id="content_size_grid">
+                        <property name="visible">True</property>
+                        <property name="can_focus">False</property>
+                        <property name="margin_top">12</property>
+                        <property name="margin_bottom">12</property>
+                        <property name="row_spacing">32</property>
+                        <property name="column_spacing">32</property>
+                        <child>
+                          <object class="GtkLabel" id="tray_size_label">
+                            <property name="visible">True</property>
+                            <property name="can_focus">False</property>
+                            <property name="label" translatable="yes">Tray Content Size
+(0 = default)</property>
+                            <property name="xalign">0</property>
+                          </object>
+                          <packing>
+                            <property name="left_attach">0</property>
+                            <property name="top_attach">0</property>
+                          </packing>
+                        </child>
+                        <child>
+                          <object class="GtkScale" id="tray_size_scale">
+                            <property name="visible">True</property>
+                            <property name="can_focus">True</property>
+                            <property name="valign">baseline</property>
+                            <property name="hexpand">True</property>
+                            <property name="adjustment">tray_size_adjustment</property>
+                            <property name="round_digits">0</property>
+                            <property name="digits">0</property>
+                            <property name="value_pos">right</property>
+                          </object>
+                          <packing>
+                            <property name="left_attach">1</property>
+                            <property name="top_attach">0</property>
+                          </packing>
+                        </child>
+                        <child>
+                          <object class="GtkLabel" id="leftbox_size_label">
+                            <property name="visible">True</property>
+                            <property name="can_focus">False</property>
+                            <property name="label" translatable="yes">Left Content Size
+(0 = default)</property>
+                            <property name="xalign">0</property>
+                          </object>
+                          <packing>
+                            <property name="left_attach">0</property>
+                            <property name="top_attach">1</property>
+                          </packing>
+                        </child>
+                        <child>
+                          <object class="GtkScale" id="leftbox_size_scale">
+                            <property name="visible">True</property>
+                            <property name="can_focus">True</property>
+                            <property name="valign">baseline</property>
+                            <property name="hexpand">True</property>
+                            <property name="adjustment">leftbox_size_adjustment</property>
+                            <property name="round_digits">0</property>
+                            <property name="digits">0</property>
+                            <property name="value_pos">right</property>
+                          </object>
+                          <packing>
+                            <property name="left_attach">1</property>
+                            <property name="top_attach">1</property>
+                          </packing>
+                        </child>
+                      </object>
+                    </child>
+                  </object>
+                </child>
+              </object>
+            </child>
+            <child type="label_item">
+              <placeholder/>
+            </child>
+          </object>
+          <packing>
+            <property name="expand">False</property>
+            <property name="fill">True</property>
+            <property name="position">0</property>
+          </packing>
+        </child>
+        <child>
+          <placeholder/>
+        </child>
+      </object>
+      <packing>
+        <property name="position">2</property>
+      </packing>
     </child>
     <child type="tab">
-      <placeholder/>
+      <object class="GtkLabel" id="appearance_label">
+        <property name="visible">True</property>
+        <property name="can_focus">False</property>
+        <property name="label" translatable="yes">Appearance</property>
+      </object>
+      <packing>
+        <property name="position">2</property>
+        <property name="tab_fill">False</property>
+      </packing>
     </child>
     <child>
       <placeholder/>
diff --git a/po/onebar.pot b/po/onebar.pot
new file mode 100644
index 0000000..375218e
--- /dev/null
+++ b/po/onebar.pot
@@ -0,0 +1,126 @@
+# SOME DESCRIPTIVE TITLE.
+# Copyright (C) YEAR THE PACKAGE'S COPYRIGHT HOLDER
+# This file is distributed under the same license as the PACKAGE package.
+# FIRST AUTHOR <EMAIL@ADDRESS>, YEAR.
+#
+#, fuzzy
+msgid ""
+msgstr ""
+"Project-Id-Version: PACKAGE VERSION\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2016-12-22 18:05-0500\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"Language: \n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=CHARSET\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: prefs.js:127
+msgid "Customize middle-click behavior"
+msgstr ""
+
+#: prefs.js:134
+msgid "Reset to defaults"
+msgstr ""
+
+#: Settings.ui.h:1
+msgid ""
+"When set to minimize, double clicking minimizes all the windows of the "
+"application."
+msgstr ""
+
+#: Settings.ui.h:2
+msgid "Shift+Click action"
+msgstr ""
+
+#: Settings.ui.h:3
+msgid "Raise window"
+msgstr ""
+
+#: Settings.ui.h:4
+msgid "Minimize window"
+msgstr ""
+
+#: Settings.ui.h:5
+msgid "Launch new instance"
+msgstr ""
+
+#: Settings.ui.h:6
+msgid "Cycle through windows"
+msgstr ""
+
+#: Settings.ui.h:7
+msgid "Quit"
+msgstr ""
+
+#: Settings.ui.h:8
+msgid "Behavior for Middle-Click."
+msgstr ""
+
+#: Settings.ui.h:9
+msgid "Middle-Click action"
+msgstr ""
+
+#: Settings.ui.h:10
+msgid "Behavior for Shift+Middle-Click."
+msgstr ""
+
+#: Settings.ui.h:11
+msgid "Shift+Middle-Click action"
+msgstr ""
+
+#: Settings.ui.h:12
+msgid "Position on screen"
+msgstr ""
+
+#: Settings.ui.h:13
+msgid "Bottom"
+msgstr ""
+
+#: Settings.ui.h:14
+msgid "Top"
+msgstr ""
+
+#: Settings.ui.h:15
+msgid "Panel Size"
+msgstr ""
+
+#: Settings.ui.h:16
+msgid "Position and size"
+msgstr ""
+
+#: Settings.ui.h:17
+msgid ""
+"If disabled, these settings are acccessible from gnome-tweak-tool or the "
+"extension website."
+msgstr ""
+
+#: Settings.ui.h:18
+msgid "Show <i>Applications</i> icon"
+msgstr ""
+
+#: Settings.ui.h:19
+msgid "Move the applications button at the beginning of the panel."
+msgstr ""
+
+#: Settings.ui.h:20
+msgid "Animate <i>Show Applications</i>."
+msgstr ""
+
+#: Settings.ui.h:21
+msgid "Behaviour when clicking on the icon of a running application."
+msgstr ""
+
+#: Settings.ui.h:22
+msgid "Click action"
+msgstr ""
+
+#: Settings.ui.h:23
+msgid "Minimize"
+msgstr ""
+
+#: Settings.ui.h:24
+msgid "Behavior"
+msgstr ""
diff --git a/prefs.js b/prefs.js
index 026b1a4..b155c6a 100644
--- a/prefs.js
+++ b/prefs.js
@@ -37,6 +37,7 @@ const Convenience = Me.imports.convenience;
 
 const SCALE_UPDATE_TIMEOUT = 500;
 const DEFAULT_PANEL_SIZES = [ 128, 96, 64, 48, 32, 24, 16 ];
+const DEFAULT_FONT_SIZES = [ 96, 64, 48, 32, 24, 16, 0 ];
 
 const Settings = new Lang.Class({
     Name: 'TaskBar.Settings',
@@ -108,14 +109,6 @@ const Settings = new Lang.Class({
                             this._builder.get_object('show_applications_button_switch'),
                             'active',
                             Gio.SettingsBindFlags.DEFAULT);
-        this._settings.bind('show-apps-at-top',
-                            this._builder.get_object('application_button_first_button'),
-                            'active',
-                            Gio.SettingsBindFlags.DEFAULT);
-        this._settings.bind('show-show-apps-button',
-                            this._builder.get_object('application_button_first_button'),
-                            'sensitive',
-                            Gio.SettingsBindFlags.DEFAULT);
         this._settings.bind('animate-show-apps',
                             this._builder.get_object('application_button_animation_button'),
                             'active',
@@ -197,6 +190,33 @@ const Settings = new Lang.Class({
 
         }));
 
+        // Appearance panel
+
+        let sizeScales = [
+            {objectName: 'tray_size_scale', valueName: 'tray-size'},
+            {objectName: 'leftbox_size_scale', valueName: 'leftbox-size'}
+        ];
+        
+        for(var idx in sizeScales) {
+            let size_scale = this._builder.get_object(sizeScales[idx].objectName);
+            size_scale.set_range(DEFAULT_FONT_SIZES[DEFAULT_FONT_SIZES.length-1], DEFAULT_FONT_SIZES[0]);
+            size_scale.set_value(this._settings.get_int(sizeScales[idx].valueName));
+            DEFAULT_FONT_SIZES.slice(1, -1).forEach(function(val) {
+                size_scale.add_mark(val, Gtk.PositionType.TOP, val.toString());
+            });
+
+            // Corrent for rtl languages
+            if (this._rtl) {
+                // Flip value position: this is not done automatically
+                size_scale.set_value_pos(Gtk.PositionType.LEFT);
+                // I suppose due to a bug, having a more than one mark and one above a value of 100
+                // makes the rendering of the marks wrong in rtl. This doesn't happen setting the scale as not flippable
+                // and then manually inverting it
+                size_scale.set_flippable(false);
+                size_scale.set_inverted(true);
+            }
+        }
+
     },
 
     /**
diff --git a/schemas/org.gnome.shell.extensions.dash-to-panel.gschema.xml b/schemas/org.gnome.shell.extensions.dash-to-panel.gschema.xml
index ec50c8e..55cc7bf 100644
--- a/schemas/org.gnome.shell.extensions.dash-to-panel.gschema.xml
+++ b/schemas/org.gnome.shell.extensions.dash-to-panel.gschema.xml
@@ -29,11 +29,6 @@
       <summary>Show applications button</summary>
       <description>Show appplications button in the dash</description>
     </key>
-    <key type="b" name="show-apps-at-top">
-      <default>false</default>
-      <summary>Show application button at top</summary>
-      <description>Show appplication button at top of the dash</description>
-    </key>
     <key type="b" name="animate-show-apps">
       <default>true</default>
       <summary>Animate Show Applications from the desktop</summary>
@@ -72,5 +67,15 @@
       <summary>Action when clicking on a running app</summary>
       <description>Set the action that is executed when shift+middle-clicking on the icon of a running application</description>
     </key>
+    <key type="i" name="tray-size">
+      <default>0</default>
+      <summary>Tray content size</summary>
+      <description>Set the size of the tray items. (0 for default)</description>
+  </key>
+  <key type="i" name="leftbox-size">
+      <default>0</default>
+      <summary>Left content size</summary>
+      <description>Set the size of the leftBox items. (0 for default)</description>
+  </key>
   </schema>
 </schemalist>