Update app.py

app.py

@@ -33,7 +33,7 @@ with gr.Blocks(
             c900="#708090",
             c950="#708090",
         ),
-        secondary_hue=gr.themes.color(
+        secondary_hue=gr.themes.Color(
             c50="#576b95",
             c100="#576b95",
             c200="#576b95",
@@ -46,7 +46,7 @@ with gr.Blocks(
             c900="#576b95",
             c950="#576b95",
         ),
-        neutral_hue=gr.themes.color(
+        neutral_hue=gr.themes.Color(
             name="gray",
             c50="#f9fafb",
             c100="#f3f4f6",
@@ -123,9 +123,10 @@ with gr.Blocks(
                             with gr.Column(scale=1):
                                 downloadFile = gr.File(interactive=False)
     gr.Markdown("""
-                                <div align=center>you can follow the WeChat public account [45度科研人] and leave me a message! 
-                                <div align=center><img width = '200' height ='200' src ="https://dunazo.oss-cn-beijing.aliyuncs.com/blog/wechat-simple.png"/>  <img width = '170' height ='190' src ="https://dunazo.oss-cn-beijing.aliyuncs.com/blog/shoukuanma222.png"/>
-                                </div>""")
+                                <div align=center>you can follow the WeChat public account [45度科研人] and leave me a message!  </div> </b>
+                                <div align=center><img width = '200' height ='200' src ="https://dunazo.oss-cn-beijing.aliyuncs.com/blog/wechat-simple.png"/>        <img width = '170' height ='190' src ="https://dunazo.oss-cn-beijing.aliyuncs.com/blog/shoukuanma222.png"/>
+                                </div>
+                                """)
     keyTxt.submit(submit_key, keyTxt, [user_api_key, status_display])
     keyTxt.change(submit_key, keyTxt, [user_api_key, status_display])
     # Chatbot