make the 50% tranparency 10% because transparency is working at this value

app.py

@@ -126,7 +126,7 @@ def inference(
         # Add 50% transparency to the white background
         data = qrcode_image.getdata()
         new_data = [
-            (item[0], item[1], item[2], 128) if item[:3] == (255, 255, 255) else item
+            (item[0], item[1], item[2], 26) if item[:3] == (255, 255, 255) else item
             for item in data
         ]
         qrcode_image.putdata(new_data)