png_set_bKGD       26 third_party/libpng/pngset.c png_set_bKGD(png_structp png_ptr, png_infop info_ptr, png_color_16p background)
png_set_bKGD      365 third_party/libpng/pngusr.h #define png_set_bKGD                    wk_png_set_bKGD