diff --git a/lib/screens/siteConfig/ScanQRScreen.dart b/lib/screens/siteConfig/ScanQRScreen.dart
index 78fc00fe..fffcdf47 100644
--- a/lib/screens/siteConfig/ScanQRScreen.dart
+++ b/lib/screens/siteConfig/ScanQRScreen.dart
@@ -79,7 +79,7 @@ class ScannerOverlay extends CustomPainter {
   @override
   void paint(Canvas canvas, Size size) {
     // we need to pass the size to the custom paint widget
-    final backgroundPath = Path()..addRect(Rect.largest);
+    final backgroundPath = Path()..addRect(Rect.fromLTWH(0, 0, size.width, size.height));
 
     final cutoutPath = Path()
       ..addRRect(
@@ -95,7 +95,7 @@ class ScannerOverlay extends CustomPainter {
     final backgroundPaint = Paint()
       ..color = Colors.black.withOpacity(0.5)
       ..style = PaintingStyle.fill
-      ..blendMode = BlendMode.dstOut;
+      ..blendMode = BlendMode.srcOver;
 
     final backgroundWithCutout = Path.combine(
       PathOperation.difference,