I am using freshly installed Ubuntu 19.10 on a Dell Precision 7530 laptop.
Under settings - background, I cannot change the background to anything other that the default pictures.
According to Ubuntu Desktop Guide » Settings » Display & screen » Change the desktop and lock screen backgrounds, "There are three choices displayed on top:.... "
This is incorrect. There is an "add picture" button, but no wallpapers, colors or pictures buttons.
First remove the picture:
IMPORTANT: For older version Ubuntu, prior to 22.04 use this command instead, otherwise SKIP this part:
Then apply RGB value, for example:
Special thanks to zwets!
@PRATAP: Rather than opening a new thread. Just curious, is the solid color removal just temporal? I've noticed it existing in the documentation. Any infos on whether it will be returned?
The "plain colors" option has been removed in Ubuntu 19.10. It is currently only possible to select bitmaps as background.
You still can set plain colors through changing hidden settings, as outlined on How to get non-image (plain) desktop background?, or on Change background color to pitch black.
Edit: Nov 26
I Just tried to compile the source code by manipulating things here n there and could make background field like before, I mean like Ubuntu 18.04.
I don't know the side effects yet.. under observation..
I got around this by creating an image in Gimp, filling it with the colour I want and exporting it to the /Pictures directory as a PNG. Then in Settings > Background click Add Picture and add it. Now you can set your background to that colour by selecting this picture. You can have a choice of colours by changing the image and adding it again.
You could also do gradients in this way.
(It's difficult to understand why they removed this functionality. Lots of us want a plain background that isn't a distraction.)