As one can resize the icons on desktop (not within nautilus) through righ-click menu: "Resize icon..", so where is the size stored for that certain file.
File attributes for icons are stored in binary files inside
To read an attribute for a file you need to use the
To read the complete metadata stored from a file/folder on the
To set an attribute inside the
If you want to change the scale of an icon in gnome you need to change the icon-scale attribute so for the file shown before if I wanted to reset the scale to 1 would do that as this
Unfortunately I could only see the changes after I logged off and back in on,
The icons doesnt really have a size, they are all SVG which are infinite on size.
The Size which nautilus use to display it inside itself its stored on the Nautilus hidden folder on your $HOME (in .config/nautilus, but this may differ on newer versions)