The Kubuntu desktop has a widget called Folder View that can be used to put icons on the desktop. However the widget itself is translucent and hides part of the wallpaper where it is put. I did not like this and looked for ways to remove the opacity of the folder view. However this did not seem easy.
There was an easier solution, to remove the folder view and put icons directly on the desktop. This needed a small tweak. The desktop can be directly converted into a folder view.
1. First unlock desktop widgets.
2. Right click on the desktop and go to "Desktop Settings".
3. In the Layout option select "Folder View" and click Apply.
4. Now it will show contents from the Desktop folder on the desktop.