update hover color.

utils.py

@@ -21,7 +21,7 @@ def df_to_html(df):
     styles = [
         {'selector': 'tr', 'props': [('border', 'none')]},  # Hide row borders
         {'selector': 'td, th', 'props': [('border', 'none'), ("text-align", "center"), ('font-size', 'smaller')]},  # Remove cell borders, reduce font size
-        {'selector': 'tr:hover', 'props': [('background-color', '#f5f5f5')]},
+        {'selector': 'tr:hover', 'props': [('background-color', '#878787')]},
         {'selector': 'a:hover', 'props': [('color', 'darkblue')]},
         {'selector': 'table', 'props': [('border-collapse', 'collapse'), ('border', 'none'), ('border-bottom', '1px solid black'), ('width', '50%')]},  # Set table width to 50%
         {'selector': 'thead', 'props': [('border', 'none')]},  # Hide header border