Update app.py

error fix for custom theme

app.py

@@ -65,15 +65,14 @@ def predict_text(image):
 with open("style.css", "r") as f:
     custom_css = f.read()
 
-# Create a custom Gradio theme using the external CSS
-custom_theme = gr.themes.Base(
+# Create a base theme (without custom CSS)
+theme_obj = gr.themes.Base(
     font=["Arial", "sans-serif"],
-    primary_hue="#e2cb92",          # GWU official gold as primary color
-    css=custom_css
+    primary_hue="#e2cb92"  # GWU official gold as primary color
 )
 
-# Gradio UI
-with gr.Blocks(theme=custom_theme) as interface:
+# Build Gradio interface with custom CSS applied via the Blocks css parameter
+with gr.Blocks(theme=theme_obj, css=custom_css) as interface:
     
     # Header
     gr.Markdown(
@@ -102,6 +101,5 @@ with gr.Blocks(theme=custom_theme) as interface:
     submit_button.click(fn=predict_text, inputs=image_input, outputs=output_text)
 
 
-
 if __name__ == "__main__":
     interface.launch()