SpriteSheetKit example assets
Original files are distributed unchanged.

Ninja (run_0.png to run_5.png)
Author: DezrasDragons
License: CC0
Source: https://opengameart.org/content/ninja-animated

Guy in coat (coat.gif)
Author: kotnaszynce
License: CC0
Source: https://opengameart.org/content/guy-in-coat-animated-set

Leafbug (leafbug.gif, from OPP2017)
License: CC0, as offered by the author and included in the original archive
Source: https://opengameart.org/content/opp2017-sprites-characters-objects-effects

CC0: https://creativecommons.org/publicdomain/zero/1.0/