BLEND            1073 third_party/libwebp/enc/picture.c           y_ptr[x] = BLEND(Y0, y_ptr[x], a_ptr[x]);
BLEND            1110 third_party/libwebp/enc/picture.c             r = BLEND(red, r, alpha);
BLEND            1111 third_party/libwebp/enc/picture.c             g = BLEND(green, g, alpha);
BLEND            1112 third_party/libwebp/enc/picture.c             b = BLEND(blue, b, alpha);