Update app.py

app.py

@@ -1,18 +1,18 @@
 import time
 
-from theme_dropdown import create_theme_dropdown  
+from theme_dropdown import create_theme_dropdown  # noqa: F401
 
 import gradio as gr
 
 dropdown, js = create_theme_dropdown()
 
-with gr.Blocks(theme='Tonic/indiansummer') as demo:
+with gr.Blocks(theme='Tonic/greenblast') as demo:
     with gr.Row().style(equal_height=True):
         with gr.Column(scale=10):
             gr.Markdown(
                 """
-                # Theme preview: `indiansummer`
-                To use this theme, set `theme='Tonic/indiansummer'` in `gr.Blocks()` or `gr.Interface()`.
+                # Theme preview: `greenblast`
+                To use this theme, set `theme='Tonic/greenblast'` in `gr.Blocks()` or `gr.Interface()`.
                 """
             )
         with gr.Column(scale=3):