/usr/src/castle-game-engine-5.0.0/components/icons/Makefile is in castle-game-engine-src 5.0.0-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 | castleicons.lrs: *.png
lazres castleicons.lrs *.png
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