I am using Ubuntu 18.04.4 gnome 3.28.2
The size of icons on the desktop seems to be be controlled by the sizes of icons in Files.
While I need to occasionally change the Files icon sizes temporarily to view picture thumbnails etc. that action also changes the desktop icons. This is often irritating.
Is there a way to lock the size of desktop icons such that any change in the Files icon size would not affect desktop icon size?