Setting icon color to first ListTile in ExpansionTile. Fixes #23053 (#23118)

diff --git a/AUTHORS b/AUTHORS
index 433846e..67cc5d4 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -28,6 +28,7 @@
 Lukasz Piliszczuk <lukasz@intheloup.io>
 Felix Schmidt <felix.free@gmx.de>
 Artur Rymarz <artur.rymarz@gmail.com>
+Chema Molins <chemamolins@gmail.com>
 Stefan Mitev <mr.mitew@gmail.com>
 Jasper van Riet <jaspervanriet@gmail.com>
 Mattijs Fuijkschot <mattijs.fuijkschot@gmail.com>