Added default empty string to dropdowns

app.py

@@ -217,14 +217,15 @@ import random
 #@title Gradio Concept Loader
 DROPDOWNS = {}
 
+# set a default for empty entries...
+DROPDOWNS[''] = ''
+
+# populate the dropdowns with full appendable style strings...
 for model in model_tags:
   if model != "ahx-model-1" and model != "ahx-model-2":
     DROPDOWNS[model] = f" in the style of <{model}>"
 
-# def image_prompt(prompt, dropdown, guidance, steps, seed, height, width):
-
-
-
+# set pipe param defaults...
 def default_guidance():
   return 7.5