Kamel.E

Unfortunately it seems that it doesn't work. I just changes the white background into the other color. To resolve my problem, I had to create another "artboard" that contains all the other ones and fill it with grey color. I also had to fill the other artboards in white.

I am exporting my workspaces in once, however in the final jpeg or png file all the space between the workspaces is white so we do not distinguish the screens anymore as my app's background is also white. I would like the empty space between the screens to be in the same grey. Is there any special option ? Thank you !