Setting default ubuntu desktop backgrounds
31619
How to modify the system default background image
69195
Where are the Unity desktop wallpapers located?
79379
How to change background and maintain realistic effect?
26579
Is it possible to have a different background for each workspace?
112564
How to set all the backgrounds transparent so that the home screen could be seen?
127270
How can I set an animated background?
68096
Can I change my Ubuntu Desktop into a different flavour (like Kubuntu)?
65390
How to set default Window position and/or size?
5691
How to Auto-Arrange Desktop Icons?
4616
Set background image for font color?
107107
How to Add Background Images in 2.8 and later
100268
Path to current desktop backgrounds in Windows 10?
113625
Disabling desktop icons in Ubuntu 18.04
6229
How do I reset GNOME to the defaults?
9527
How can I change GNOME Shell theme?
88336
Change the background of the login screen
61633
how to change background of nautilus in ubuntu 14.04