/schemas/desktop/gnome/thumbnailers/image@x-dcraw/enable /desktop/gnome/thumbnailers/image@x-dcraw/enable dcraw-thumbnailer bool true /schemas/desktop/gnome/thumbnailers/image@x-dcraw/command /desktop/gnome/thumbnailers/image@x-dcraw/command dcraw-thumbnailer string dcraw-thumbnailer %u %o