[radarhere]

For the padding bytes in two channel images, I've previously suggested setting them to zero in convert() in #7276. That had a lukewarm reception, so I closed it.

However, in the case of getink(),

Pillow/src/_imaging.c

Lines 609 to 610 in b60880a

	getink(PyObject *color, Imaging im, char *ink) {
	int g = 0, b = 0, a = 0;

Pillow/src/_imaging.c

Lines 673 to 683 in b60880a

	if (im->bands == 2) {
	if (tupleSize != 1 && tupleSize != 2) {
	PyErr_SetString(
	PyExc_TypeError,
	"color must be int, or tuple of one or two elements"
	);
	return NULL;
	} else if (!PyArg_ParseTuple(color, "L|i", &r, &a)) {
	return NULL;
	}
	g = b = r;

it really does seem simpler to remove g = b = r; and leave g and b as zero.