Update app.py

app.py

@@ -74,7 +74,7 @@ def apply_edge_detection(image, min_val, max_val, operation, kernel_size):
     return Image.fromarray(edges)
 
 # Gradio interface setup
-with gr.Blocks(theme=gr.themes.Citrus()) as demo:
+with gr.Blocks(theme=gr.themes.Soft()) as demo:
     gr.Markdown("# OpenCV Image Processing with Gradio - Add Noise, Remove Noise, Morphological Operations and Edge Detection")
 
     tab_names = ["Add Noise", "Remove Noise", "Morphological Operations", "Edge Detection"]