chore: update demo to reflect correct syntax on newer gradio version for gr.blocks

demos/run_gradio_demo.py

@@ -330,13 +330,6 @@ EX_TEXT = ["a wooden chair", "a marble statue", "a golden trophy"]
 
 with gr.Blocks(
     title="GuideFlow3D",
-    css=css,
-    theme=gr.themes.Default(primary_hue="sky", secondary_hue="lime").set(
-        body_background_fill="white",
-        background_fill_primary="white",
-        block_background_fill="white",
-        input_background_fill="#f9fafb"
-    )
 ) as demo:
     
     gr.HTML(HEADER_HTML)
@@ -438,4 +431,18 @@ with gr.Blocks(
     demo.load(None, None, None, js="() => { document.body.classList.remove('dark'); }")
 
 if __name__ == "__main__":
-    demo.queue().launch(share=True, allowed_paths=[project_root])
+    # demo.queue().launch(share=True, allowed_paths=[project_root], mcp_server=True) # Useful for Colab runs
+    demo.queue().launch(
+        allowed_paths=[project_root], 
+        mcp_server=True, 
+        css=css,
+        theme=gr.themes.Default(
+            primary_hue="sky", 
+            secondary_hue="lime"
+        ).set(
+            body_background_fill="white",
+            background_fill_primary="white",
+            block_background_fill="white",
+            input_background_fill="#f9fafb"
+        )
+    )