Update app.py

app.py

@@ -2,7 +2,7 @@ from __future__ import annotations
 from typing import Iterable
 
 import gradio as gr
-from gradio.themes.base import Base
+from gradio.themes.base import Base, Soft, Monochrome, Default
 from gradio.themes.utils import colors, fonts, sizes
 
 import torch
@@ -24,7 +24,7 @@ def adjust_brightness(rgb_color: tuple[int, int, int], factor: float) -> tuple[i
     new_rgb = colorsys.hsv_to_rgb(hsv_color[0], hsv_color[1], new_v)
     return tuple(int(v * 255) for v in new_rgb)
 
-class MPGPoster(Base):
+class MPGPoster(Default):
     @staticmethod
     def create_color_shades(hex_color: str, brightness_control: float = 1.0) -> colors.Color:
         base_rgb = hex_to_rgb(hex_color)