Update app.py

app.py

@@ -394,7 +394,7 @@ class ChatBotUI(object):
                                                          label='Rescale')
                                 self.refiner_scale = gr.Slider(minimum=-0.1,
                                                          maximum=1.0,
-                                                         value=self.pipe.input.get("refiner_scale", 0.5),
+                                                         value=self.pipe.input.get("refiner_scale", -1),
                                                          visible=self.pipe.input.get("refiner_scale", None) is not None,
                                                          label='Refiner Scale')
                                 self.seed = gr.Slider(minimum=-1,
@@ -563,7 +563,7 @@ class ChatBotUI(object):
                         value=self.pipe.input.get("refiner_prompt", ""),
                         visible=self.pipe.input.get("refiner_prompt", None) is not None),
                     gr.Slider(
-                              value=self.pipe.input.get("refiner_scale", 0.5),
+                              value=self.pipe.input.get("refiner_scale", -1),
                               visible=self.pipe.input.get("refiner_scale", None) is not None
                         ),
                     gr.Checkbox(