Update app.py

app.py

@@ -33,9 +33,9 @@ theme = gr.themes.Base(
 )
 
 with gr.Blocks(theme=theme) as demo:
-    img = gr.Image(show_label=False, type='pil', variant='primary')
+    img = gr.Image(show_label=False, type='pil')
     textbox = gr.Textbox(show_label=False)
-    button = gr.Button("generate")
+    button = gr.Button("generate",  variant="primary")
     button.click(fn=generate, inputs=textbox, outputs=img)
 
 demo.launch()