diff --git a/COPYING.rtro b/COPYING.rtro
index 6d8c3b7..f5ff3ee 100644
--- a/COPYING.rtro
+++ b/COPYING.rtro
@@ -9,6 +9,8 @@ messageboard, messageboard_red: Referenced base image messageboard/messageboard_
 dragonclaw_dagger: Derived from base image dragonclaw_dagger, licensed under CC-0.
 file: Derived from base image file, licensed under CC-0.
 kite_shield: Derived from base image kite_Shield, under CC-0.
+lantern, lantern2, lantern_off, lantern2_off: Derived from art by David Gervais. Licensed CC-BY-3.0.
+yellow_[0-9], yellow_[A-F], yellow_ne, yellow_nw, yellow_se, yellow_sw: Derived from art by David Gervais. Licensed CC-BY-3.0.
 
 Derivatives of unknown licensing:
 capitalhold_west: Referenced from base image capitalhold_west, of unknown licensing.