Update app.py

app.py

@@ -269,7 +269,7 @@ def image_processing(image, filter_type):
     return cv2.cvtColor(output, cv2.COLOR_BGR2RGB) if len(output.shape) == 3 else output
 
 # Gradio interface
-with gr.Blocks(theme=theme()) as app:
+with gr.Blocks(theme=theme) as app:
     gr.Markdown("Image Filtering Studio")
    
     with gr.Row():