https://bugs.gentoo.org/973466
https://github.com/kovidgoyal/kitty/commit/eaec66fdc628786dd7d8ce5533ff4cdcf71c4f82
--- a/kitty/colors.c
+++ b/kitty/colors.c
@@ -1181,3 +1181,3 @@
     .tp_basicsize = sizeof(Color),
-    .tp_flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_VECTORCALL,
+    .tp_flags = Py_TPFLAGS_DEFAULT,
     .tp_doc = "Color",