diff --git a/Polyhedron/demo/Polyhedron/Add_polylines_dialog.ui b/Polyhedron/demo/Polyhedron/Add_polylines_dialog.ui
index 2656b22eb4a..063d80cf8b6 100644
--- a/Polyhedron/demo/Polyhedron/Add_polylines_dialog.ui
+++ b/Polyhedron/demo/Polyhedron/Add_polylines_dialog.ui
@@ -19,78 +19,72 @@
   <property name="windowTitle">
    <string>Add polylines</string>
   </property>
-  <widget class="QWidget" name="verticalLayoutWidget">
-   <property name="geometry">
-    <rect>
-     <x>5</x>
-     <y>10</y>
-     <width>441</width>
-     <height>301</height>
-    </rect>
-   </property>
-   <layout class="QVBoxLayout" name="verticalLayout">
-    <property name="sizeConstraint">
-     <enum>QLayout::SetMinimumSize</enum>
-    </property>
-    <item>
-     <widget class="QTextEdit" name="textEdit">
-      <property name="sizePolicy">
-       <sizepolicy hsizetype="MinimumExpanding" vsizetype="MinimumExpanding">
-        <horstretch>0</horstretch>
-        <verstretch>0</verstretch>
-       </sizepolicy>
-      </property>
-      <property name="html">
-       <string>&lt;!DOCTYPE HTML PUBLIC &quot;-//W3C//DTD HTML 4.0//EN&quot; &quot;http://www.w3.org/TR/REC-html40/strict.dtd&quot;&gt;
+  <layout class="QHBoxLayout" name="horizontalLayout_2">
+   <item>
+    <layout class="QVBoxLayout" name="verticalLayout">
+     <property name="sizeConstraint">
+      <enum>QLayout::SetMinimumSize</enum>
+     </property>
+     <item>
+      <widget class="QTextEdit" name="textEdit">
+       <property name="sizePolicy">
+        <sizepolicy hsizetype="MinimumExpanding" vsizetype="MinimumExpanding">
+         <horstretch>0</horstretch>
+         <verstretch>0</verstretch>
+        </sizepolicy>
+       </property>
+       <property name="html">
+        <string>&lt;!DOCTYPE HTML PUBLIC &quot;-//W3C//DTD HTML 4.0//EN&quot; &quot;http://www.w3.org/TR/REC-html40/strict.dtd&quot;&gt;
 &lt;html&gt;&lt;head&gt;&lt;meta name=&quot;qrichtext&quot; content=&quot;1&quot; /&gt;&lt;style type=&quot;text/css&quot;&gt;
 p, li { white-space: pre-wrap; }
-&lt;/style&gt;&lt;/head&gt;&lt;body style=&quot; font-family:'Sans Serif'; font-size:10pt; font-weight:400; font-style:normal;&quot;&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;&quot;&gt;&lt;br /&gt;&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
-      </property>
-      <property name="overwriteMode">
-       <bool>false</bool>
-      </property>
-      <property name="placeholderText">
-       <string notr="true">Polyline format:  Ax Ay A3 Bx By Bz ... Zx Zy Zz </string>
-      </property>
-     </widget>
-    </item>
-    <item>
-     <layout class="QHBoxLayout" name="horizontalLayout">
-      <property name="sizeConstraint">
-       <enum>QLayout::SetMinimumSize</enum>
-      </property>
-      <item>
-       <widget class="QPushButton" name="addButton">
-        <property name="text">
-         <string>Create Polyline Item</string>
-        </property>
-       </widget>
-      </item>
-      <item>
-       <spacer name="horizontalSpacer">
-        <property name="orientation">
-         <enum>Qt::Horizontal</enum>
-        </property>
-        <property name="sizeHint" stdset="0">
-         <size>
-          <width>40</width>
-          <height>20</height>
-         </size>
-        </property>
-       </spacer>
-      </item>
-      <item>
-       <widget class="QPushButton" name="closeButton">
-        <property name="text">
-         <string>Close</string>
-        </property>
-       </widget>
-      </item>
-     </layout>
-    </item>
-   </layout>
-  </widget>
+&lt;/style&gt;&lt;/head&gt;&lt;body style=&quot; font-family:'Cantarell'; font-size:11pt; font-weight:400; font-style:normal;&quot;&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:'Sans Serif'; font-size:10pt;&quot;&gt;&lt;br /&gt;&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+       </property>
+       <property name="overwriteMode">
+        <bool>false</bool>
+       </property>
+       <property name="placeholderText" stdset="0">
+        <string notr="true">Polyline format:  Ax Ay A3 Bx By Bz ... Zx Zy Zz </string>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <layout class="QHBoxLayout" name="horizontalLayout">
+       <property name="sizeConstraint">
+        <enum>QLayout::SetMinimumSize</enum>
+       </property>
+       <item>
+        <widget class="QPushButton" name="addButton">
+         <property name="text">
+          <string>Create Polyline Item</string>
+         </property>
+        </widget>
+       </item>
+       <item>
+        <spacer name="horizontalSpacer">
+         <property name="orientation">
+          <enum>Qt::Horizontal</enum>
+         </property>
+         <property name="sizeHint" stdset="0">
+          <size>
+           <width>40</width>
+           <height>20</height>
+          </size>
+         </property>
+        </spacer>
+       </item>
+       <item>
+        <widget class="QPushButton" name="closeButton">
+         <property name="text">
+          <string>Close</string>
+         </property>
+        </widget>
+       </item>
+      </layout>
+     </item>
+    </layout>
+   </item>
+  </layout>
  </widget>
  <resources/>
  <connections/>