Update app.py

app.py

@@ -55,16 +55,16 @@ inputs = [
     Checkbox(label="Use Gradient"),
     ColorPicker(label="Gradient Color 1"),
     ColorPicker(label="Gradient Color 2"),
-    Number(label="Border Radius"),
+    Number(label="Border Radius", min=0, max=50),
     Image(label="Logo (optional)"),
 ]
 
 output = Image(label="QR Code")
 
 examples = [
-    ["https://instagram.com", "#E1306C", False, "#E1306C", "#4458A7", 0, ""],
-    ["https://twitter.com", "#1DA1F2", False, "#1DA1F2", "#124964", 5, ""],
-    ["https://huggingface.co", "#EE5A55", False, "#EE5A55", "#FBB040", 10, ""]
+    ["https://instagram.com", "#E1306C", False, "#E1306C", "#4458A7", 0, None],
+    ["https://twitter.com", "#1DA1F2", False, "#1DA1F2", "#124964", 5, None],
+    ["https://huggingface.co", "#EE5A55", False, "#EE5A55", "#FBB040", 10, None]
 ]
 
 def generate_qr_code_app(url, color, use_gradient, gradient_color1, gradient_color2, border_radius, logo):