Update app.py

app.py

@@ -511,8 +511,8 @@ with gr.Blocks(title="OT-2 Liquid Color Matching Experiment Queue") as demo:
     # NOTE: concurrency_limit=3 is preserved; no changes here
     submit_btn.click(
         add_to_queue,
-        inputs=[student_id_input, r_slider, y_slider, b_slider, experimental_state],
-        outputs= [result_output, experiment_state]
+        inputs=[student_id_input, r_slider, y_slider, b_slider, experiment_state],
+        outputs=[result_output, experiment_state],
         api_name="submit",
         concurrency_limit=8
     ).then(
@@ -543,7 +543,7 @@ with gr.Blocks(title="OT-2 Liquid Color Matching Experiment Queue") as demo:
     )
 
 
-demo.queue 
+demo.queue()
 
 if __name__ == "__main__":
     demo.launch()