Update app.py

app.py

@@ -338,7 +338,16 @@ def create_gradio_interface():
     """Create Gradio interface for Paper Downloader"""
     downloader = PaperDownloader()
 
-    def download_papers(bib_file, doi_input, dois_input):
+    def download_papers(bib_file, doi_input, dois_input, theme_mode):
+        if theme_mode == "dark":
+            theme = gr.themes.Monochrome(
+                primary_hue="indigo",
+                secondary_hue="neutral",
+            )
+            
+        else:
+           theme = "gstaff/sketch"
+            
         if bib_file:
             # Check file type
             if not bib_file.name.lower().endswith('.bib'):
@@ -362,7 +371,8 @@ def create_gradio_interface():
         inputs=[
             gr.File(file_types=['.bib'], label="Upload BibTeX File"),
             gr.Textbox(label="Enter Single DOI", placeholder="10.xxxx/xxxx"),
-            gr.Textbox(label="Enter Multiple DOIs (one per line)", placeholder="10.xxxx/xxxx\n10.yyyy/yyyy\n...")
+            gr.Textbox(label="Enter Multiple DOIs (one per line)", placeholder="10.xxxx/xxxx\n10.yyyy/yyyy\n..."),
+             gr.Dropdown(choices=["light", "dark"], value="light", label="Theme mode"),
         ],
         outputs=[
             gr.File(label="Download Papers (ZIP) or Single PDF"),