diff --git a/img/LICENSE b/img/LICENSE
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+The images and files in this folder are licensed under Creative Commons Attribution-ShareAlike 4.0 International. To view a copy of this license, visit https://creativecommons.org/licenses/by-sa/4.0/
+
+`cards_black.png`, `cards_red.png`, and `cards.aseprite` are adapted from designs by Wikimedia user Louiemantia (https://commons.wikimedia.org/wiki/User:Louiemantia), found on the following Wikipedia page: https://en.wikipedia.org/w/index.php?title=Hanafuda&oldid=1268051915#Cards
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