ImageDemosaic for BGGR decoding?

Questions
1

I have a raw image with the pixels in the BGGR order.

ImageDemosaic[image, {"RGGB"}]

will decode the image but with the incorrect color.

How can I get the equivalent of ImageDemosaic[image, {“BGGR”}]?

2

Fix is simple.
ImageDemosaic[image, {“RGGB”, {1, 1}}]