Drop lots of legacy code. Support Python 3.7-3.11.

[librarian.git] / src / librarian / covers / utils / color.py

diff --git a/src/librarian/covers/utils/color.py b/src/librarian/covers/utils/color.py
index afcf38e..f42f8b6 100644 (file)
--- a/src/librarian/covers/utils/color.py
+++ b/src/librarian/covers/utils/color.py
@@ -1,3 +1,6 @@
+# This file is part of Librarian, licensed under GNU Affero GPLv3 or later.
+# Copyright © Fundacja Wolne Lektury. See NOTICE for more information.
+#
 def luminance(rgb):
     rgb = [
         c / 255