I want to make remastered ubuntu for my task. and now I got problem with theme, icon, and wallpaper. actually I've install numix theme and wallpaper and remaster my Ubuntu with REMASTERSYS and after I test it in VM, the numix theme is there. but when I install numix bluish theme and it's icons, the remastered Ubuntu still display numix theme like a previous one. also, someone told me that the default wallpaper folder is at /usr/share/backgrounds so I put my costumized wallpaper there so I can use it for my remastered Ubuntu but the wallpaper still numix. do I miss something? sorry for bad english

  • Is your question mainly how to set the wallpaper or where it is stored? – Jacob Vlijm Jun 2 '15 at 6:33
  • I'm sorry. I mean I want my wallpaper (i.e gubuntu.png) to be a default wallpaper to my remastered ubuntu called gubuntu.iso and the default theme is numix-bluish and the default icon is compress. I've tried to store gubuntu.png at /usr/share/background and change it in system setting->appearence but my image doesnt appear on it. I mean, if I activate the wallpaper, can it be default wallpaper in my gubuntu? – arief dharmawan Jun 3 '15 at 6:37


The default wallpaper directory is found at /usr/share/backgrounds/ and the default wallpaper is called warty-final-ubuntu.png so overwrite it to change the default wallpaper easily.


For Icons globcally it's the directory /usr/share/icons/ which typically contains pre-installed themes (shared by all users)

Or locally in your home folder : ~/.icons which typically contains folders with the themes installed by the user.

Also, many applications have their icons in /usr/share/pixmaps/


For Themes globally it's the directory /usr/share/themes/ which typically contains default themes (shared by all users)

Or locally in your home folder : ~/.themes which typically contains themes installed by the user.

  • ??? I'd say better use the key org.gnome.desktop.background picture-uri then "overwrite" the current wallpaper. – Jacob Vlijm Jun 2 '15 at 5:55
  • so, can I just rename my wallpaper's name to the default wallpaper name and move it to /usr/share/backgrounds so it overwrite the default one? – arief dharmawan Jun 3 '15 at 7:03
  • yes you can do it – Maythux Jun 3 '15 at 7:04
  • @JacobVlijm I personally play with the xml in the contest dir instead, but i prefer overwriting for newbies – Maythux Jun 3 '15 at 7:05
  • so where path should I overwrite the default icon and theme? – arief dharmawan Jun 3 '15 at 7:08

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