Remove Background feature - Does the background have to be white or can I change it to another colour?

[yellowroll]

In certain scenarios I wish to change the background to be like that of the attached photo (grey colour in this case). How would I do about doing that? Currently when I save a .jpg file it makes the background white after using the remove background feature.

[user0]

related
General - canvas background color - improve consistency of use

[Vick]

The JPG format does not support transparency, so it will place a white background in its place at the time of saving.

If you need to maintain transparency after removing the background, you will need to save in a format that supports transparency, such as PNG or TIF.