Update app.py

app.py

@@ -80,15 +80,15 @@ with gr.Blocks() as app:
             with gr.TabItem("Color"):
                 enable_color_limit = gr.Checkbox(label="Enable", value=False)
                 palette_size_color = gr.Slider(label="Palette Size", minimum=1, maximum=256, step=1, value=16)
-                quantization_methods_color = gr.Radio(choices=["Median Cut", "Maximum Coverage", "Fast Octree"], label="Colors Quantization Method")
-                dither_methods_color = gr.Radio(choices=["None", "Floyd-Steinberg"], label="Colors Dither Method")
+                quantization_methods_color = gr.Radio(choices=["Median Cut", "Maximum Coverage", "Fast Octree"], label="Colors Quantization Method", value="Median Cut")
+                dither_methods_color = gr.Radio(choices=["None", "Floyd-Steinberg"], label="Colors Dither Method", value="None")
                 k_means_color = gr.Checkbox(label="Enable k-means for color quantization", value=True)
             
             with gr.TabItem("Grayscale"):
                 enable_grayscale = gr.Checkbox(label="Enable", value=False)
                 palette_size_gray = gr.Slider(label="Palette Size", minimum=1, maximum=256, step=1, value=16)
-                quantization_methods_gray = gr.Radio(choices=["Median Cut", "Maximum Coverage", "Fast Octree"], label="Colors Quantization Method")
-                dither_methods_gray = gr.Radio(choices=["None", "Floyd-Steinberg"], label="Colors Dither Method")
+                quantization_methods_gray = gr.Radio(choices=["Median Cut", "Maximum Coverage", "Fast Octree"], label="Colors Quantization Method", value="Median Cut")
+                dither_methods_gray = gr.Radio(choices=["None", "Floyd-Steinberg"], label="Colors Dither Method", value="None")
                 k_means_gray = gr.Checkbox(label="Enable k-means for color quantization", value=True)
             
             with gr.TabItem("Black and white"):
@@ -100,7 +100,7 @@ with gr.Blocks() as app:
                 enable_custom_palette = gr.Checkbox(label="Enable", value=False)
                 palette_image = gr.Image(label="Color palette image", type="pil")
                 palette_size_custom = gr.Slider(label="Palette Size", minimum=1, maximum=256, step=1, value=16)
-                dither_methods_custom = gr.Radio(choices=["None", "Floyd-Steinberg"], label="Colors Dither Method")
+                dither_methods_custom = gr.Radio(choices=["None", "Floyd-Steinberg"], label="Colors Dither Method", value="None")
                 
                 post_process_button = gr.Button("Apply Post-Processing")