I learned that the
gsettings range shows all possible options for a the setting but when I do
gsettings range org.gnome.gedit.preferences.editor scheme
It does not show me options for schemes presented by GUI settings like
'Classic' 'Cobalt' 'Kate' 'Oblivion' 'Solarized Dark' 'Solarized Light' 'Tango'
Rather it shows me this
Why? And how to see these options in terminal?