diff --git a/OpenBoard.pro b/OpenBoard.pro
index 8798e432..74583fce 100644
--- a/OpenBoard.pro
+++ b/OpenBoard.pro
@@ -12,8 +12,8 @@ CONFIG += debug_and_release \
 VERSION_MAJ = 1
 VERSION_MIN = 6
 VERSION_PATCH = 0
-VERSION_TYPE = a # a = alpha, b = beta, rc = release candidate, r = release, other => error
-VERSION_BUILD = 3
+VERSION_TYPE = r # a = alpha, b = beta, rc = release candidate, r = release, other => error
+VERSION_BUILD = 0
 
 VERSION = "$${VERSION_MAJ}.$${VERSION_MIN}.$${VERSION_PATCH}-$${VERSION_TYPE}.$${VERSION_BUILD}"
 
diff --git a/resources/forms/preferences.ui b/resources/forms/preferences.ui
index 4cb5c523..f9eef050 100644
--- a/resources/forms/preferences.ui
+++ b/resources/forms/preferences.ui
@@ -7,7 +7,7 @@
     <x>0</x>
     <y>0</y>
     <width>825</width>
-    <height>767</height>
+    <height>810</height>
    </rect>
   </property>
   <property name="windowTitle">
@@ -3093,7 +3093,7 @@ p, li { white-space: pre-wrap; }
 &lt;p style=&quot; margin-top:12px; margin-bottom:12px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;span style=&quot; font-family:'Cantarell'; font-size:10pt;&quot;&gt;&lt;br /&gt;&lt;/span&gt;&lt;/p&gt;
 &lt;p style=&quot; margin-top:12px; margin-bottom:12px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;span style=&quot; font-family:'Cantarell'; font-size:10pt;&quot;&gt;&lt;br /&gt;&lt;/span&gt;&lt;/p&gt;
 &lt;p style=&quot; margin-top:12px; margin-bottom:12px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;span style=&quot; font-family:'Cantarell'; font-size:12pt; font-weight:600;&quot;&gt;Resources added in OpenBoard&lt;/span&gt;&lt;/p&gt;
-&lt;p style=&quot;-qt-paragraph-type:empty; margin-top:12px; margin-bottom:12px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;br /&gt;&lt;/p&gt;
+&lt;p style=&quot;-qt-paragraph-type:empty; margin-top:12px; margin-bottom:12px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px; font-family:'Ubuntu';&quot;&gt;&lt;br /&gt;&lt;/p&gt;
 &lt;p style=&quot; margin-top:12px; margin-bottom:12px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;span style=&quot; font-family:'Cantarell'; font-size:10pt;&quot;&gt;AndBasR.ttf &lt;/span&gt;&lt;/p&gt;
 &lt;p style=&quot; margin-top:12px; margin-bottom:12px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;span style=&quot; font-family:'Cantarell'; font-size:10pt;&quot;&gt;Sil Open Font License&lt;/span&gt;&lt;/p&gt;
 &lt;p style=&quot; margin-top:12px; margin-bottom:12px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;a href=&quot;http://scripts.sil.org/OFL&quot;&gt;&lt;span style=&quot; font-family:'Cantarell'; font-size:10pt; text-decoration: underline; color:#0000ff;&quot;&gt;http://scripts.sil.org/OFL&lt;/span&gt;&lt;/a&gt;&lt;/p&gt;
@@ -3122,13 +3122,13 @@ p, li { white-space: pre-wrap; }
 &lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;a href=&quot;http://www.ge.ch/sem/cc/by-nc-nd/&quot;&gt;&lt;span style=&quot; font-family:'Lucida Grande'; font-size:10pt; text-decoration: underline; color:#0000ff;&quot;&gt;http://www.ge.ch/sem/cc/by-nc-nd/&lt;/span&gt;&lt;/a&gt;&lt;/p&gt;
 &lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;span style=&quot; font-family:'Cantarell'; font-size:10pt;&quot;&gt;© 2005-2015, Vista Multimedia SA, Droit de diffusion Etat de Genève - DIP&lt;/span&gt;&lt;/p&gt;
 &lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;a href=&quot;http://edu.ge.ch/sem/node/1294&quot;&gt;&lt;span style=&quot; font-family:'Lucida Grande'; font-size:10pt; text-decoration: underline; color:#0000ff;&quot;&gt;http://edu.ge.ch/sem/node/1294&lt;/span&gt;&lt;/a&gt;&lt;/p&gt;
-&lt;p style=&quot;-qt-paragraph-type:empty; margin-top:12px; margin-bottom:12px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;br /&gt;&lt;/p&gt;
-&lt;p style=&quot; margin-top:12px; margin-bottom:12px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;span style=&quot; font-size:10pt;&quot;&gt;GraphMe Widget 2.1&lt;/span&gt;&lt;/p&gt;
-&lt;p style=&quot; margin-top:12px; margin-bottom:12px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;span style=&quot; font-size:10pt;&quot;&gt;Yannick Vessaz&lt;/span&gt;&lt;/p&gt;
-&lt;p style=&quot;-qt-paragraph-type:empty; margin-top:12px; margin-bottom:12px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;br /&gt;&lt;/p&gt;
-&lt;p style=&quot; margin-top:12px; margin-bottom:12px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;span style=&quot; font-size:10pt;&quot;&gt;QR-Code Widget&lt;/span&gt;&lt;/p&gt;
-&lt;p style=&quot; margin-top:12px; margin-bottom:12px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;span style=&quot; font-size:10pt;&quot;&gt;Basilstotz&lt;/span&gt;&lt;/p&gt;
-&lt;p style=&quot; margin-top:12px; margin-bottom:12px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;span style=&quot; font-size:10pt;&quot;&gt;Licence: CCO&lt;/span&gt;&lt;/p&gt;
+&lt;p style=&quot;-qt-paragraph-type:empty; margin-top:12px; margin-bottom:12px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px; font-family:'Ubuntu';&quot;&gt;&lt;br /&gt;&lt;/p&gt;
+&lt;p style=&quot; margin-top:12px; margin-bottom:12px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;span style=&quot; font-family:'Ubuntu'; font-size:10pt;&quot;&gt;GraphMe Widget 2.1&lt;/span&gt;&lt;/p&gt;
+&lt;p style=&quot; margin-top:12px; margin-bottom:12px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;span style=&quot; font-family:'Ubuntu'; font-size:10pt;&quot;&gt;Yannick Vessaz&lt;/span&gt;&lt;/p&gt;
+&lt;p style=&quot;-qt-paragraph-type:empty; margin-top:12px; margin-bottom:12px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px; font-family:'Ubuntu';&quot;&gt;&lt;br /&gt;&lt;/p&gt;
+&lt;p style=&quot; margin-top:12px; margin-bottom:12px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;span style=&quot; font-family:'Ubuntu'; font-size:10pt;&quot;&gt;QR-Code Widget&lt;/span&gt;&lt;/p&gt;
+&lt;p style=&quot; margin-top:12px; margin-bottom:12px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;span style=&quot; font-family:'Ubuntu'; font-size:10pt;&quot;&gt;Basilstotz&lt;/span&gt;&lt;/p&gt;
+&lt;p style=&quot; margin-top:12px; margin-bottom:12px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;span style=&quot; font-family:'Ubuntu'; font-size:10pt;&quot;&gt;Licence: CCO&lt;/span&gt;&lt;/p&gt;
 &lt;p style=&quot;-qt-paragraph-type:empty; margin-top:12px; margin-bottom:12px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px; font-family:'Cantarell'; font-size:10pt;&quot;&gt;&lt;br /&gt;&lt;/p&gt;
 &lt;p style=&quot; margin-top:12px; margin-bottom:12px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;span style=&quot; font-family:'Cantarell'; font-size:10pt; color:#000000;&quot;&gt;Sonata para piano (.mp3)&lt;/span&gt;&lt;/p&gt;
 &lt;p style=&quot; margin-top:12px; margin-bottom:12px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;span style=&quot; font-family:'Cantarell'; font-size:10pt; color:#000000;&quot;&gt;Óscar G. Villegas&lt;/span&gt;&lt;/p&gt;
@@ -3148,7 +3148,7 @@ p, li { white-space: pre-wrap; }
 &lt;p style=&quot; margin-top:12px; margin-bottom:12px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;span style=&quot; font-family:'Cantarell'; font-size:10pt;&quot;&gt;David Eccles (gringer)&lt;/span&gt;&lt;/p&gt;
 &lt;p style=&quot; margin-top:12px; margin-bottom:12px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;a href=&quot;http://creativecommons.org/licenses/by-sa/3.0/deed.en&quot;&gt;&lt;span style=&quot; font-family:'Cantarell'; font-size:10pt; text-decoration: underline; color:#0000ff;&quot;&gt;Creative Commons Attribution-Share Alike 3.0 Unported&lt;/span&gt;&lt;/a&gt;&lt;/p&gt;
 &lt;p style=&quot; margin-top:12px; margin-bottom:12px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;a href=&quot;http://commons.wikimedia.org/wiki/File:Worldmap_wdb_combined.svg&quot;&gt;&lt;span style=&quot; font-family:'Cantarell'; font-size:10pt; text-decoration: underline; color:#0000ff;&quot;&gt;http://commons.wikimedia.org/wiki/File:Worldmap_wdb_combined.svg&lt;/span&gt;&lt;/a&gt;&lt;/p&gt;
-&lt;p style=&quot;-qt-paragraph-type:empty; margin-top:12px; margin-bottom:12px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;br /&gt;&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+&lt;p style=&quot;-qt-paragraph-type:empty; margin-top:12px; margin-bottom:12px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px; font-family:'Ubuntu';&quot;&gt;&lt;br /&gt;&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
          </property>
          <property name="openExternalLinks">
           <bool>true</bool>
@@ -3175,7 +3175,7 @@ p, li { white-space: pre-wrap; }
 &lt;table border=&quot;0&quot; style=&quot;-qt-table-type: root; margin-top:4px; margin-bottom:4px; margin-left:4px; margin-right:4px;&quot;&gt;
 &lt;tr&gt;
 &lt;td style=&quot;border: none;&quot;&gt;
-&lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;span style=&quot; font-family:'Cantarell'; font-size:10pt;&quot;&gt;OpenBoard 1.5.4&lt;/span&gt;&lt;/p&gt;
+&lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;span style=&quot; font-family:'Cantarell'; font-size:10pt;&quot;&gt;OpenBoard 1.6.0&lt;/span&gt;&lt;/p&gt;
 &lt;p style=&quot;-qt-paragraph-type:empty; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px; font-family:'Cantarell'; font-size:10pt;&quot;&gt;&lt;br /&gt;&lt;/p&gt;
 &lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;span style=&quot; font-family:'Cantarell'; font-size:10pt;&quot;&gt;OpenBoard is copyright © 2020. All rights reserved.&lt;/span&gt;&lt;/p&gt;
 &lt;p style=&quot;-qt-paragraph-type:empty; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px; font-family:'Cantarell'; font-size:10pt;&quot;&gt;&lt;br /&gt;&lt;/p&gt;
@@ -3192,7 +3192,7 @@ p, li { white-space: pre-wrap; }
 &lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;span style=&quot; font-family:'Cantarell'; font-size:10pt;&quot;&gt;Switzerland&lt;/span&gt;&lt;/p&gt;
 &lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;a href=&quot;http://www.openboard.ch&quot;&gt;&lt;span style=&quot; font-family:'.Helvetica Neue DeskInterface'; text-decoration: underline; color:#0000ff;&quot;&gt;openboard.ch&lt;/span&gt;&lt;/a&gt;&lt;/p&gt;
 &lt;p style=&quot;-qt-paragraph-type:empty; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px; font-family:'.Helvetica Neue DeskInterface'; text-decoration: underline; color:#0000ff;&quot;&gt;&lt;br /&gt;&lt;/p&gt;
-&lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;span style=&quot; font-family:'Cantarell'; font-size:10pt;&quot;&gt;emails: &lt;/span&gt;&lt;a href=&quot;mailto:sem.logistique@edu.ge.ch&quot;&gt;&lt;span style=&quot; font-family:'Cantarell'; font-size:10pt; text-decoration: underline; color:#0000ff;&quot;&gt;sem.logistique@edu.ge.ch&lt;/span&gt;&lt;/a&gt;, &lt;a href=&quot;mailto:sem.logistique@edu.ge.ch&quot;&gt;&lt;span style=&quot; font-family:'Cantarell'; font-size:10pt; text-decoration: underline; color:#0000ff;&quot;&gt;support@openboard.ch&lt;/span&gt;&lt;/a&gt;&lt;/p&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/body&gt;&lt;/html&gt;</string>
+&lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;span style=&quot; font-family:'Cantarell'; font-size:10pt;&quot;&gt;emails: &lt;/span&gt;&lt;a href=&quot;mailto:sem.logistique@edu.ge.ch&quot;&gt;&lt;span style=&quot; font-family:'Cantarell'; font-size:10pt; text-decoration: underline; color:#0000ff;&quot;&gt;sem.logistique@edu.ge.ch&lt;/span&gt;&lt;/a&gt;&lt;span style=&quot; font-family:'Ubuntu';&quot;&gt;, &lt;/span&gt;&lt;a href=&quot;mailto:sem.logistique@edu.ge.ch&quot;&gt;&lt;span style=&quot; font-family:'Cantarell'; font-size:10pt; text-decoration: underline; color:#0000ff;&quot;&gt;support@openboard.ch&lt;/span&gt;&lt;/a&gt;&lt;/p&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/body&gt;&lt;/html&gt;</string>
          </property>
          <property name="openExternalLinks">
           <bool>true</bool>