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

app.py

@@ -270,7 +270,7 @@ BS_THEME = gr.themes.Base(
 
 
 # ----------------------------------------------------------------------------- UI
-with gr.Blocks(title="Build Small — Certificate Generator", theme=BS_THEME, css=CUSTOM_CSS) as demo:
+with gr.Blocks(title="Build Small — Certificate Generator") as demo:
     gr.HTML(
         """
         <div class="bs-hero">
@@ -314,7 +314,7 @@ with gr.Blocks(title="Build Small — Certificate Generator", theme=BS_THEME, cs
             generate_btn = gr.Button("Generate my certificate", variant="primary", size="lg")
 
         gr.HTML('<div class="bs-section">Your certificate</div>')
-        certificate_image = gr.Image(label="Preview", type="filepath", interactive=False, show_download_button=True)
+        certificate_image = gr.Image(label="Preview", type="filepath", interactive=False)
         certificate_file = gr.File(label="Download (PNG)", interactive=False)
         generation_status = gr.Markdown("")
 
@@ -341,4 +341,4 @@ with gr.Blocks(title="Build Small — Certificate Generator", theme=BS_THEME, cs
 
 
 if __name__ == "__main__":
-    demo.launch()
+    demo.launch(theme=BS_THEME, css=CUSTOM_CSS)