diff --git a/_resources/images/screenshot1.png b/_resources/images/screenshot1.png
index 16881ea..6e27782 100644
Binary files a/_resources/images/screenshot1.png and b/_resources/images/screenshot1.png differ
diff --git a/_resources/images/screenshot2.png b/_resources/images/screenshot2.png
index 5d4f67e..2e9cfc9 100644
Binary files a/_resources/images/screenshot2.png and b/_resources/images/screenshot2.png differ
diff --git a/sources/main_window.ui b/sources/main_window.ui
index 806ae86..7789ffc 100644
--- a/sources/main_window.ui
+++ b/sources/main_window.ui
@@ -6,8 +6,8 @@
    <rect>
     <x>0</x>
     <y>0</y>
-    <width>579</width>
-    <height>443</height>
+    <width>562</width>
+    <height>421</height>
    </rect>
   </property>
   <property name="windowTitle">
@@ -85,7 +85,7 @@
        <item>
         <spacer name="horizontalSpacer">
          <property name="orientation">
-          <enum>Qt::Orientation::Horizontal</enum>
+          <enum>Qt::Horizontal</enum>
          </property>
          <property name="sizeHint" stdset="0">
           <size>
@@ -240,9 +240,11 @@
         </layout>
        </item>
        <item>
-        <widget class="QTextEdit" name="textEdit">
-         <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_4">
+         <item>
+          <widget class="QTextEdit" name="textEdit">
+           <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;meta charset=&quot;utf-8&quot; /&gt;&lt;style type=&quot;text/css&quot;&gt;
 p, li { white-space: pre-wrap; }
 hr { height: 1px; border-width: 0; }
@@ -250,8 +252,65 @@ li.unchecked::marker { content: &quot;\2610&quot;; }
 li.checked::marker { content: &quot;\2612&quot;; }
 &lt;/style&gt;&lt;/head&gt;&lt;body style=&quot; font-family:'Segoe UI'; font-size:9pt; font-weight:400; font-style:normal;&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;Text example&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
-         </property>
-        </widget>
+           </property>
+          </widget>
+         </item>
+         <item>
+          <widget class="QFrame" name="frame">
+           <property name="sizePolicy">
+            <sizepolicy hsizetype="Expanding" vsizetype="Expanding">
+             <horstretch>0</horstretch>
+             <verstretch>0</verstretch>
+            </sizepolicy>
+           </property>
+           <property name="frameShape">
+            <enum>QFrame::StyledPanel</enum>
+           </property>
+           <property name="frameShadow">
+            <enum>QFrame::Raised</enum>
+           </property>
+           <layout class="QVBoxLayout" name="verticalLayout_5">
+            <item>
+             <widget class="QCheckBox" name="checkBox_3">
+              <property name="text">
+               <string>CheckBox variant 1</string>
+              </property>
+             </widget>
+            </item>
+            <item>
+             <widget class="QCheckBox" name="checkBox_4">
+              <property name="text">
+               <string>CheckBox variant 2</string>
+              </property>
+              <property name="checked">
+               <bool>true</bool>
+              </property>
+             </widget>
+            </item>
+            <item>
+             <widget class="QCheckBox" name="checkBox_5">
+              <property name="text">
+               <string>CheckBox variant 2</string>
+              </property>
+             </widget>
+            </item>
+            <item>
+             <spacer name="verticalSpacer">
+              <property name="orientation">
+               <enum>Qt::Vertical</enum>
+              </property>
+              <property name="sizeHint" stdset="0">
+               <size>
+                <width>20</width>
+                <height>22</height>
+               </size>
+              </property>
+             </spacer>
+            </item>
+           </layout>
+          </widget>
+         </item>
+        </layout>
        </item>
       </layout>
      </widget>
@@ -264,7 +323,7 @@ li.checked::marker { content: &quot;\2612&quot;; }
     <rect>
      <x>0</x>
      <y>0</y>
-     <width>579</width>
+     <width>562</width>
      <height>21</height>
     </rect>
    </property>