Update app.py

app.py

@@ -17,7 +17,7 @@ gr.Chatbot.postprocess = postprocess
 with open("css_new.css", "r", encoding="utf-8") as f:
     css = f.read()
 
-with gr.Blocks(css=css,theme=gr.themes.Soft()) as demo:
+with gr.Blocks(css=css,theme='gradio/soft') as demo:
     history = gr.State([])
     token_count = gr.State([])
     promptTemplates = gr.State(load_template('myprompts.json', mode=2))
@@ -32,7 +32,6 @@ with gr.Blocks(css=css,theme=gr.themes.Soft()) as demo:
                 gr.Markdown(description)
         with gr.Column(scale=1):
             with gr.Box():
-                # dropdown.render()
                 toggle_dark = gr.Button(value="Toggle Dark").style(full_width=True)
    
     with gr.Row(scale=1).style(equal_height=True):
@@ -74,12 +73,13 @@ with gr.Blocks(css=css,theme=gr.themes.Soft()) as demo:
         <img src="https://dunazo.oss-cn-beijing.aliyuncs.com/blog/shoukuanma222.png" style="margin-left:25px;width:170px;height:190px;">
     </div>
     """)
-    # dropdown.change(None, dropdown, None, _js=js)
+    
     toggle_dark.click(None,_js="""
         () => {
             document.body.classList.toggle('dark');
             document.querySelector('gradio-app').style.backgroundColor = 'var(--color-background-primary)'
         }""",)
+    
     keyTxt.submit(submit_key, keyTxt, [user_api_key, status_display])
     keyTxt.change(submit_key, keyTxt, [user_api_key, status_display])
     # Chatbot