diff --git a/plugin_installer/installer.ui b/plugin_installer/installer.ui
index be93382..f9ab99d 100644
--- a/plugin_installer/installer.ui
+++ b/plugin_installer/installer.ui
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!-- Generated with glade 3.36.0 -->
+<!-- Generated with glade 3.38.2 -->
 <interface>
   <requires lib="gtk+" version="3.20"/>
   <object class="GtkListStore" id="plugin_store">
@@ -20,32 +20,32 @@
   </object>
   <object class="GtkBox" id="available_plugins_box">
     <property name="visible">True</property>
-    <property name="can_focus">False</property>
-    <property name="border_width">18</property>
+    <property name="can-focus">False</property>
+    <property name="border-width">18</property>
     <property name="spacing">18</property>
     <child>
       <object class="GtkOverlay">
         <property name="visible">True</property>
-        <property name="can_focus">False</property>
+        <property name="can-focus">False</property>
         <child>
           <object class="GtkBox" id="plugins_box">
-            <property name="width_request">180</property>
+            <property name="width-request">180</property>
             <property name="visible">True</property>
-            <property name="can_focus">False</property>
+            <property name="can-focus">False</property>
             <property name="hexpand">True</property>
             <property name="orientation">vertical</property>
             <child>
               <object class="GtkScrolledWindow" id="scrolledwindow">
                 <property name="visible">True</property>
-                <property name="can_focus">True</property>
-                <property name="hscrollbar_policy">never</property>
-                <property name="shadow_type">out</property>
+                <property name="can-focus">True</property>
+                <property name="hscrollbar-policy">never</property>
+                <property name="shadow-type">out</property>
                 <child>
                   <object class="GtkTreeView" id="available_plugins_treeview">
                     <property name="visible">True</property>
-                    <property name="can_focus">True</property>
+                    <property name="can-focus">True</property>
                     <property name="model">plugin_store</property>
-                    <property name="search_column">2</property>
+                    <property name="search-column">2</property>
                     <child internal-child="selection">
                       <object class="GtkTreeSelection" id="treeview-selection">
                         <signal name="changed" handler="_on_plugin_selection_changed" swapped="no"/>
@@ -55,13 +55,13 @@
                       <object class="GtkTreeViewColumn">
                         <property name="resizable">True</property>
                         <property name="sizing">fixed</property>
-                        <property name="fixed_width">180</property>
-                        <property name="min_width">150</property>
-                        <property name="max_width">300</property>
+                        <property name="fixed-width">180</property>
+                        <property name="min-width">150</property>
+                        <property name="max-width">300</property>
                         <property name="title" translatable="yes">Plugin</property>
                         <property name="clickable">True</property>
-                        <property name="sort_indicator">True</property>
-                        <property name="sort_column_id">1</property>
+                        <property name="sort-indicator">True</property>
+                        <property name="sort-column-id">1</property>
                         <child>
                           <object class="GtkCellRendererPixbuf" id="pixbufrenderer"/>
                           <attributes>
@@ -105,8 +105,8 @@
                         <property name="title" translatable="yes">Install</property>
                         <property name="clickable">True</property>
                         <property name="alignment">0.5</property>
-                        <property name="sort_indicator">True</property>
-                        <property name="sort_column_id">4</property>
+                        <property name="sort-indicator">True</property>
+                        <property name="sort-column-id">4</property>
                         <child>
                           <object class="GtkCellRendererToggle" id="togglerenderer">
                             <signal name="toggled" handler="_available_plugin_toggled" swapped="no"/>
@@ -132,16 +132,16 @@
             <child>
               <object class="GtkToolbar">
                 <property name="visible">True</property>
-                <property name="can_focus">False</property>
-                <property name="toolbar_style">text</property>
-                <property name="show_arrow">False</property>
+                <property name="can-focus">False</property>
+                <property name="toolbar-style">text</property>
+                <property name="show-arrow">False</property>
                 <child>
                   <object class="GtkToolButton" id="install_plugin_button">
                     <property name="visible">True</property>
                     <property name="sensitive">False</property>
-                    <property name="can_focus">False</property>
+                    <property name="can-focus">False</property>
                     <property name="label" translatable="yes">Install / Upda_te</property>
-                    <property name="use_underline">True</property>
+                    <property name="use-underline">True</property>
                     <signal name="clicked" handler="_on_install_update_clicked" swapped="no"/>
                   </object>
                   <packing>
@@ -167,7 +167,7 @@
         <child type="overlay">
           <object class="GtkSpinner" id="spinner">
             <property name="visible">True</property>
-            <property name="can_focus">False</property>
+            <property name="can-focus">False</property>
             <property name="active">True</property>
           </object>
         </child>
@@ -180,19 +180,19 @@
     </child>
     <child>
       <object class="GtkBox">
-        <property name="width_request">400</property>
+        <property name="width-request">400</property>
         <property name="visible">True</property>
-        <property name="can_focus">False</property>
+        <property name="can-focus">False</property>
         <property name="hexpand">True</property>
         <property name="orientation">vertical</property>
         <property name="spacing">18</property>
         <child>
           <object class="GtkLabel" id="name_label">
             <property name="visible">True</property>
-            <property name="can_focus">False</property>
-            <property name="no_show_all">True</property>
+            <property name="can-focus">False</property>
+            <property name="no-show-all">True</property>
             <property name="halign">start</property>
-            <property name="label" translatable="yes">&lt;Plugin Name&gt;</property>
+            <property name="label">&lt;Plugin Name&gt;</property>
             <property name="selectable">True</property>
             <property name="xalign">0</property>
             <style>
@@ -208,11 +208,11 @@
         <child>
           <object class="GtkLabel" id="description_label">
             <property name="visible">True</property>
-            <property name="can_focus">False</property>
+            <property name="can-focus">False</property>
             <property name="halign">start</property>
-            <property name="label" translatable="yes">&lt;Description&gt;</property>
+            <property name="label">&lt;Description&gt;</property>
             <property name="wrap">True</property>
-            <property name="wrap_mode">word-char</property>
+            <property name="wrap-mode">word-char</property>
             <property name="selectable">True</property>
             <property name="xalign">0</property>
           </object>
@@ -223,15 +223,16 @@
           </packing>
         </child>
         <child>
+          <!-- n-columns=3 n-rows=3 -->
           <object class="GtkGrid">
             <property name="visible">True</property>
-            <property name="can_focus">False</property>
-            <property name="row_spacing">6</property>
-            <property name="column_spacing">12</property>
+            <property name="can-focus">False</property>
+            <property name="row-spacing">6</property>
+            <property name="column-spacing">12</property>
             <child>
               <object class="GtkLabel">
                 <property name="visible">True</property>
-                <property name="can_focus">False</property>
+                <property name="can-focus">False</property>
                 <property name="halign">end</property>
                 <property name="valign">start</property>
                 <property name="label" translatable="yes">Version</property>
@@ -240,14 +241,14 @@
                 </style>
               </object>
               <packing>
-                <property name="left_attach">0</property>
-                <property name="top_attach">0</property>
+                <property name="left-attach">0</property>
+                <property name="top-attach">0</property>
               </packing>
             </child>
             <child>
               <object class="GtkLabel">
                 <property name="visible">True</property>
-                <property name="can_focus">False</property>
+                <property name="can-focus">False</property>
                 <property name="halign">end</property>
                 <property name="valign">start</property>
                 <property name="label" translatable="yes">Authors</property>
@@ -256,14 +257,14 @@
                 </style>
               </object>
               <packing>
-                <property name="left_attach">0</property>
-                <property name="top_attach">1</property>
+                <property name="left-attach">0</property>
+                <property name="top-attach">1</property>
               </packing>
             </child>
             <child>
               <object class="GtkLabel">
                 <property name="visible">True</property>
-                <property name="can_focus">False</property>
+                <property name="can-focus">False</property>
                 <property name="halign">end</property>
                 <property name="valign">start</property>
                 <property name="label" translatable="yes">Homepage</property>
@@ -272,57 +273,66 @@
                 </style>
               </object>
               <packing>
-                <property name="left_attach">0</property>
-                <property name="top_attach">2</property>
+                <property name="left-attach">0</property>
+                <property name="top-attach">2</property>
               </packing>
             </child>
             <child>
               <object class="GtkLabel" id="version_label">
                 <property name="visible">True</property>
-                <property name="can_focus">False</property>
+                <property name="can-focus">False</property>
                 <property name="halign">start</property>
-                <property name="label" translatable="yes">&lt;empty&gt;</property>
+                <property name="label">&lt;empty&gt;</property>
                 <property name="wrap">True</property>
-                <property name="wrap_mode">word-char</property>
+                <property name="wrap-mode">word-char</property>
                 <property name="selectable">True</property>
                 <property name="xalign">0</property>
               </object>
               <packing>
-                <property name="left_attach">1</property>
-                <property name="top_attach">0</property>
+                <property name="left-attach">1</property>
+                <property name="top-attach">0</property>
               </packing>
             </child>
             <child>
               <object class="GtkLabel" id="authors_label">
                 <property name="visible">True</property>
-                <property name="can_focus">False</property>
+                <property name="can-focus">False</property>
                 <property name="halign">start</property>
-                <property name="label" translatable="yes">&lt;empty&gt;</property>
+                <property name="label">&lt;empty&gt;</property>
                 <property name="wrap">True</property>
-                <property name="wrap_mode">word-char</property>
+                <property name="wrap-mode">word-char</property>
                 <property name="selectable">True</property>
                 <property name="xalign">0</property>
               </object>
               <packing>
-                <property name="left_attach">1</property>
-                <property name="top_attach">1</property>
+                <property name="left-attach">1</property>
+                <property name="top-attach">1</property>
               </packing>
             </child>
             <child>
               <object class="GtkLabel" id="homepage_linkbutton">
                 <property name="visible">True</property>
-                <property name="can_focus">False</property>
+                <property name="can-focus">False</property>
                 <property name="halign">start</property>
-                <property name="label" translatable="yes">&lt;empty&gt;</property>
+                <property name="label">&lt;empty&gt;</property>
                 <property name="wrap">True</property>
-                <property name="wrap_mode">word-char</property>
+                <property name="wrap-mode">word-char</property>
                 <property name="xalign">0</property>
               </object>
               <packing>
-                <property name="left_attach">1</property>
-                <property name="top_attach">2</property>
+                <property name="left-attach">1</property>
+                <property name="top-attach">2</property>
               </packing>
             </child>
+            <child>
+              <placeholder/>
+            </child>
+            <child>
+              <placeholder/>
+            </child>
+            <child>
+              <placeholder/>
+            </child>
           </object>
           <packing>
             <property name="expand">False</property>