I am running Ubuntu GNOME 15.10 with GNOME 3.18, and I have set an image as my desktop background, it has a white bit around it, however when I set it to be "Spanned" on my desktop in the GNOME Tweak Tool it is put in the middle with two big black bits next to it:

enter image description here

So how can I make those black bits go white? How can I change the background colour to white (well, the black bits that is, that's what it would have been called on Unity)?

  • Don't create a new "colours" tag, as we already have a "colors" tag! :P
    – Byte Commander
    Nov 19, 2015 at 10:42
  • 1
    @ByteCommander: I'm not American! :P
    – user364819
    Nov 19, 2015 at 11:47
  • Me neither, but we don't need two tags for the same word!
    – Byte Commander
    Nov 19, 2015 at 11:48
  • 2
    @ByteCommander: Why not just get rid of the American one then so that we only have one proper one? >:P
    – user364819
    Nov 19, 2015 at 13:59

1 Answer 1


Use gsettings to set the color white (#FFFFFF) and a solid fill.

gsettings set org.gnome.desktop.background primary-color "#FFFFFF"
gsettings set org.gnome.desktop.background secondary-color "#FFFFFF"
gsettings set org.gnome.desktop.background color-shading-type "solid"


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