A reference to a named icon. Currently only File and Folder are supported. Using a theme icon is preferred over a custom icon as it gives theme authors the possibility to change the icons.
Reference to a icon representing a file. The icon is taken from the current file icon theme or a placeholder icon.
Reference to a icon representing a folder. The icon is taken from the current file icon theme or a placeholder icon.
A reference to a named icon. Currently only File and Folder are supported. Using a theme icon is preferred over a custom icon as it gives theme authors the possibility to change the icons.