diff --git a/bouquin/markdown_highlighter.py b/bouquin/markdown_highlighter.py
index 6bbb664..36c6d04 100644
--- a/bouquin/markdown_highlighter.py
+++ b/bouquin/markdown_highlighter.py
@@ -69,7 +69,9 @@ class MarkdownHighlighter(QSyntaxHighlighter):
         else:
             # Light mode: keep the existing light gray
             bg = QColor(245, 245, 245)
-            fg = pal.color(0, 0, 0) # avoiding using QPalette.Text as it can be white on macOS
+            fg = QColor(
+                0, 0, 0
+            )  # avoiding using QPalette.Text as it can be white on macOS
         self.code_block_format.setBackground(bg)
         self.code_block_format.setForeground(fg)