png_permit_mng_features 1056 third_party/libpng/pngset.c png_permit_mng_features (png_structp png_ptr, png_uint_32 mng_features) png_permit_mng_features 314 third_party/libpng/pngusr.h #define png_permit_mng_features wk_png_permit_mng_features