Update app.py

app.py

@@ -1,6 +1,8 @@
 import os
 
 import gradio as gr
+from gradio.themes.base import Base
+from gradio.themes.utils import colors, fonts, sizes
 from transformers.utils import logging
 
 from langchain_ollama import OllamaEmbeddings
@@ -53,6 +55,46 @@ def hybrid_search(input_text, top_k):
     return "\n\n************************************************************\n\n".join(all_answers)
 
 
+# カスタムテーマの作成
+class CustomTheme(Base):
+    def __init__(
+        self,
+        *,
+        primary_hue: colors.Color | str = colors.blue,
+        secondary_hue: colors.Color | str = colors.gray,
+        neutral_hue: colors.Color | str = colors.gray,
+        spacing_size: sizes.Size | str = sizes.spacing_md,
+        radius_size: sizes.Size | str = sizes.radius_md,
+        text_size: sizes.Size | str = sizes.text_lg,  # フォントサイズを大きく設定
+        font: fonts.Font
+        | str
+        | list[fonts.Font | str] = (
+            fonts.GoogleFont("IBM Plex Sans"),
+            "Arial",
+            "sans-serif",
+        ),
+        font_mono: fonts.Font
+        | str
+        | list[fonts.Font | str] = (
+            fonts.GoogleFont("IBM Plex Mono"),
+            "Courier",
+            "monospace",
+        ),
+    ):
+        super().__init__(
+            primary_hue=primary_hue,
+            secondary_hue=secondary_hue,
+            neutral_hue=neutral_hue,
+            spacing_size=spacing_size,
+            radius_size=radius_size,
+            text_size=text_size,
+            font=font,
+            font_mono=font_mono,
+        )
+
+# カスタムテーマの適用
+theme = CustomTheme()
+
 CSS ="""
 .contain { display: flex; flex-direction: column; }
 .gradio-container { height: 100vh !important; }
@@ -64,7 +106,7 @@ CSS ="""
 #question-box { font-size:18px !important; font-weight:500 !important; }
 """
 #with gr.Blocks() as demo:
-with gr.Blocks(theme=gr.themes.Monochrome(radius_size=gr.themes.sizes.radius_sm)) as demo:
+with gr.Blocks(theme=theme) as demo:
     with gr.Row():
         with gr.Column():
             gr.Markdown(f"""