Update app.py

app.py

@@ -110,7 +110,7 @@ def vote_last_response(chatbot, model_selector, index_state, request: gr.Request
             gr.Warning('Your feedback is already saved.')
             return index_state
         else:
-            index_state.append(index_new)
+            index_state.append(vote_index)
             
     with open(get_conv_log_filename(), "a") as fout:
         data = {
@@ -478,7 +478,11 @@ def build_demo(embed_mode):
 
             with gr.Column(scale=8):
                 chatbot = gr.Chatbot(
-                    elem_id="chatbot", label="LLaVA Chatbot", height=550
+                    elem_id="chatbot", 
+                    label="LLaVA Chatbot", 
+                    height=550, 
+                    avatar_images = (None, "https://huggingface.co/spaces/ysharma/LLaVA_v1/resolve/main/llava_logo.png"),
+                    layout = "panel",
                 )
                 index_state = gr.State(value=[])
                 with gr.Row():