png_write_tRNS   3298 third_party/libpng/png.h PNG_EXTERN void png_write_tRNS PNGARG((png_structp png_ptr, png_bytep trans,
png_write_tRNS    167 third_party/libpng/pngwrite.c       png_write_tRNS(png_ptr, info_ptr->trans, &(info_ptr->trans_values),