Update app.py

app.py

@@ -303,27 +303,28 @@ def run(frame, state):
 # ----------------------------
 # One-screen Gradio UI
 # ----------------------------
-with gr.Blocks(css="""
-#cam_in {display:none !important;}          /* hide the raw webcam component */
-#out_img {max-height: 75vh;}               /* make output big */
-""") as demo:
-    gr.Markdown("# Live Hand Tracking (Single Screen)")
+css = """
+#cam_in {display:none !important;}
+#out_img {max-height: 75vh;}
+"""
 
+with gr.Blocks() as demo:
+    gr.Markdown("# Live Hand Tracking (Single Screen)")
     st = gr.State(None)
 
-    # Hidden webcam capture (still asks for camera permission)
+    # Hidden webcam capture (still asks for permission)
     cam_in = gr.Image(
-        source="webcam",
-        streaming=True,
+        sources=["webcam"],
         type="numpy",
+        streaming=True,
         elem_id="cam_in",
         show_label=False
     )
 
-    # The ONLY visible screen: annotated output
+    # Only visible screen: annotated output
     out_img = gr.Image(type="numpy", label="Live Tracking", elem_id="out_img")
 
     cam_in.stream(fn=run, inputs=[cam_in, st], outputs=[out_img, st])
 
 if __name__ == "__main__":
-    demo.launch()
+    demo.launch(css=css)