Try to highlight wins

server.py

@@ -21,6 +21,7 @@ from threading import Lock
 
 import gradio as gr
 import pandas as pd
+import numpy as np
 from huggingface_hub import HfApi, snapshot_download
 
 from compare_significance import SUPPORTED_METRICS
@@ -218,14 +219,7 @@ class LeaderboardServer:
 
     @staticmethod
     def _model_tournament_table_highlight_true(x):
-        df_css = x.copy()
-        for c in df_css:
-          for i in range(len(df_css.index)):
-            if x[c].iloc[i] == True:
-              df_css[c].iloc[i] = 'background-color: lightgreen'
-            else:
-              df_css[c].iloc[i] = ''
-        return df_css 
+        return np.where(x == True, 'background-color: lightgreen;', None)
 
     def get_model_tournament_table(self, submission_id, category):
         if category == self.TASKS_CATEGORY_OVERALL: