Update app.py

app.py

@@ -213,16 +213,16 @@ with gr.Blocks(title="Fluently Playground", css=css) as demo:
             width = gr.Slider(
                 label="Width",
                 minimum=256,
-                maximum=1024,
+                maximum=1536,
                 step=8,
-                value=512,
+                value=768,
             )
             height = gr.Slider(
                 label="Height",
                 minimum=256,
-                maximum=1024,
+                maximum=1536,
                 step=8,
-                value=512,
+                value=768,
             )
         with gr.Row():
             guidance_scale = gr.Slider(