Update app.py

app.py

@@ -58,6 +58,7 @@ def swap_faces(src_img, dest_img):
     return out_img
 
 def open_side():
+    # for 4.x Sidebar API
     return gr.Sidebar(open=True)
 
 # ---------- Custom CSS ----------
@@ -131,7 +132,11 @@ CUSTOM_CSS = """
 """
 
 # ---------- UI (Blocks) ----------
-with gr.Blocks(title="Image Face Swap", css=CUSTOM_CSS) as demo:
+# NOTE: no css= here – we inject CSS via <style> tag instead
+with gr.Blocks(title="Image Face Swap") as demo:
+    # Inject custom CSS manually
+    gr.HTML(f"<style>{CUSTOM_CSS}</style>")
+
     # Sticky banner
     gr.HTML(
         '<a class="sticky-cta" '
@@ -237,5 +242,6 @@ with gr.Blocks(title="Image Face Swap", css=CUSTOM_CSS) as demo:
     demo.queue()
 
 if __name__ == "__main__":
-    # In Gradio 4.x, theme goes here, NOT in gr.Blocks()
+    # If this line ever complains about theme=, just drop the arg:
+    # demo.launch()
     demo.launch(theme=gr.themes.Soft())