Fix gradio 6 API: drop show_copy_button, move theme/css to launch()

app.py

@@ -318,7 +318,7 @@ EXAMPLES = [
     ],
 ]
 
-with gr.Blocks(theme=gr.themes.Citrus(), css=CSS) as demo:
+with gr.Blocks(title="Molmo2Fish tracking") as demo:
     with gr.Column(elem_id="col-container"):
         gr.Markdown(
             "# 🐟 Molmo2Fish — interactive fish tracking\n"
@@ -350,7 +350,6 @@ with gr.Blocks(theme=gr.themes.Citrus(), css=CSS) as demo:
                     label="Model output (html-v2 tracks) — edited in place by step ②",
                     lines=6,
                     max_lines=12,
-                    show_copy_button=True,
                 )
 
         with gr.Accordion("Advanced", open=False):
@@ -398,4 +397,4 @@ with gr.Blocks(theme=gr.themes.Citrus(), css=CSS) as demo:
     )
 
 if __name__ == "__main__":
-    demo.launch(mcp_server=True)
+    demo.launch(theme=gr.themes.Citrus(), css=CSS, mcp_server=True)