040000 tree 94a903b8cd9b74a5f9567ce9e875ff1b059bd41c	general
040000 tree 8662714d5aa8519d0f9c2979a9261c217cb86b2b	hit-testing
040000 tree f9529d87f9561cbf6b47b0cedbb6e9f2f0d281d1	point-mapping