/usr/src/castle-game-engine-5.2.0/images/ is in castle-game-engine-src 5.2.0-3.
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/usr/src/castle-game-engine-5.2.0/images/castledds.pas
/usr/src/castle-game-engine-5.2.0/images/castlefpwritepng.pas
/usr/src/castle-game-engine-5.2.0/images/castleimages.pas
/usr/src/castle-game-engine-5.2.0/images/castleimages_file_formats.inc
/usr/src/castle-game-engine-5.2.0/images/castlepng.pas
/usr/src/castle-game-engine-5.2.0/images/castlepng_dynamic.inc
/usr/src/castle-game-engine-5.2.0/images/castlepng_static.inc
/usr/src/castle-game-engine-5.2.0/images/castletextureimages.pas
/usr/src/castle-game-engine-5.2.0/images/castlevideos.pas
/usr/src/castle-game-engine-5.2.0/images/images_bmp.inc
/usr/src/castle-game-engine-5.2.0/images/images_dds.inc
/usr/src/castle-game-engine-5.2.0/images/images_external_tool.inc
/usr/src/castle-game-engine-5.2.0/images/images_fpimage.inc
/usr/src/castle-game-engine-5.2.0/images/images_ipl.inc
/usr/src/castle-game-engine-5.2.0/images/images_modulatergb_implement.inc
/usr/src/castle-game-engine-5.2.0/images/images_png.inc
/usr/src/castle-game-engine-5.2.0/images/images_ppm.inc
/usr/src/castle-game-engine-5.2.0/images/images_rgbe_fileformat.inc
/usr/src/castle-game-engine-5.2.0/images/images_s3tc_flip_vertical.inc
/usr/src/castle-game-engine-5.2.0/images/images_transformrgb_implement.inc