def _get_pixbuf_pixel(pb: GdkPixbuf.Pixbuf, x, y):
bytes = pb.get_pixels()
n_channels = pb.get_n_channels()
rowstride = pb.get_rowstride()
bps = pb.get_bits_per_sample()
bytes_per_pixel = int(n_channels * bps / 8)
offset = y * rowstride + x * bytes_per_pixel
return list(bytes[offset:offset + bytes_per_pixel])
