diff --git a/form.ui b/form.ui
index fd6cf81..cad1542 100644
--- a/form.ui
+++ b/form.ui
@@ -1,18 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <ui version="4.0">
- <class>MainWindow</class>
- <widget class="QMainWindow" name="MainWindow">
-  <property name="geometry">
-   <rect>
-    <x>0</x>
-    <y>0</y>
-    <width>812</width>
-    <height>666</height>
-   </rect>
-  </property>
-  <property name="windowTitle">
-   <string>SeedQReader</string>
-  </property>
   <widget class="QWidget" name="centralwidget">
    <widget class="QTabWidget" name="tabWidget">
     <property name="geometry">
@@ -455,7 +442,6 @@
      </widget>
     </widget>
    </widget>
-  </widget>
   <widget class="QStatusBar" name="statusbar"/>
  </widget>
  <resources/>
diff --git a/requirements.txt b/requirements.txt
index 03b3051..c17803c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,10 +3,10 @@ numpy==1.24.3
 opencv-python==4.7.0.72
 Pillow==9.5.0
 pypng==0.20220715.0
-PySide2==5.13.2
 PyYAML==6.0
 pyzbar==0.1.9
 qrcode==7.4.2
-shiboken2==5.13.2
 typing_extensions==4.6.2
+PySide6==6.5.1
+shiboken6==6.5.1
 urtypes @ git+https://github.com/selfcustody/urtypes.git@7fb280eab3b3563dfc57d2733b0bf5cbc0a96a6a
diff --git a/seedqreader.py b/seedqreader.py
index d092056..6aa769f 100644
--- a/seedqreader.py
+++ b/seedqreader.py
@@ -9,11 +9,11 @@
 from yaml import load, dump
 from yaml.loader import SafeLoader as Loader
 
-from PySide2.QtWidgets import QApplication, QMainWindow
-from PySide2.QtGui import QImage, QPixmap, QPalette, QColor
-from PySide2.QtCore import Qt, QFile, QThread, Signal
-from PySide2.QtUiTools import QUiLoader
-from PySide2.QtGui import QTextOption
+from PySide6.QtWidgets import QApplication, QMainWindow
+from PySide6.QtGui import QImage, QPixmap, QPalette, QColor
+from PySide6.QtCore import Qt, QFile, QThread, Signal
+from PySide6.QtUiTools import QUiLoader
+from PySide6.QtGui import QTextOption
 
 from PIL import ImageQt
 
@@ -37,6 +37,7 @@
 
 MAX_LEN = 100
 QR_DELAY = 400
+FILL_COLOR = "#434343"
 
 def to_str(bin_):
     return bin_.decode('utf-8')
@@ -422,7 +423,7 @@ class MainWindow(QMainWindow):
     stop_display = Signal()
 
     def __init__(self):
-        QMainWindow.__init__(self)
+        super().__init__()
 
         # Set up the main window
         loader = QUiLoader()
@@ -432,8 +433,9 @@ def __init__(self):
         self.ui = loader.load(ui_file, self)
         ui_file.close()
         self.setWindowTitle("SeedQReader")
+        self.setFixedSize(812,670)
 
-        self.ui.show()
+        self.setCentralWidget(self.ui)
 
         self.load_config()
 
@@ -518,7 +520,7 @@ def list_available_cameras():
         available_cameras = []
         while True:
             cap = cv2.VideoCapture(index)
-            if not cap.isOpened():
+            if not cap.isOpened() and available_cameras:
                 if (index - int(available_cameras[-1])) > 2:
                     break
                 else:
@@ -563,6 +565,10 @@ def on_data_type_change(self):
             self.data_type = self.ui.combo_type.currentText()
 
     def on_qr_display(self, frame):
+        if frame is None:
+            frame = QPixmap(self.ui.video_in.size())
+            frame.fill(QColor(FILL_COLOR))
+        
         self.ui.video_out.setPixmap(frame)
 
     def on_qr_read(self):
@@ -578,6 +584,10 @@ def on_qr_data_read(self, data):
         self.ui.data_in.setPlainText(data)
 
     def upd_camera_stream(self, frame):
+        if frame is None:
+            frame = QPixmap(self.ui.video_in.size())
+            frame.fill(QColor(FILL_COLOR))
+        
         self.ui.video_in.setPixmap(frame)
 
     def on_slider_move(self):
@@ -710,5 +720,6 @@ def on_btn_save(self):
     app.setPalette(palette)
 
     main_win = MainWindow()
-    sys.exit(app.exec_())
+    main_win.show()
+    app.exec()