In lxappearance there is a git "+ install" button but it only accepts .tar.gz files. When downloading a theme/icon theme, the file is a .tar.xz, and when I try to turn the .tar.xz into a .tar.gz it says (lxappearance:1975): GLib-CRITICAL **: 09:45:39.810: Source ID 1301 was not found when attempting to remove it. How am I supposed to install a theme/icon theme? I am using openbox.

1 Answer 1


Manually extract the archive to your ~/.icons folder.

Make sure to not add an additional folder depth i.e. inside the .icons folder should be folder with the icon theme name and this folder should contain all the icon theme stuff.

lxappearance should now show the icon theme in the list without importing it.

  • thanks to respond to this but since then I switched to arch and a tilling windows manager and I don't use lxappearance anymore, I will accept your answer and I wish it's gonna help other but I did not used it Nov 5, 2021 at 1:12
  • This is actually what i had to do on Arch with the tiling i3. Thanks for accepting!
    – robsn
    Nov 5, 2021 at 7:10

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