Update app.py

app.py

@@ -1096,7 +1096,7 @@ def show_recent_videos_interface(hours_selection, limit_selection):
     return analyzer.generate_recent_videos_html(hours, limit)
 
 # Gradioアプリの構築
-with gr.Blocks(title="YouTube Competitor Analysis (Global)", theme=gr.themes.Dark(), css=DARK_THEME_CSS) as app:
+with gr.Blocks(title="YouTube Competitor Analysis (Global)", theme=gr.themes.Monochrome(), css=DARK_THEME_CSS) as app:
     gr.Markdown("# 🌍 YouTube Competitor Analysis App (Global)")
     gr.Markdown("Analyze competitor channel uploads and detect global clustered trends using **Gemini 2.5 Flash**.")