ThemedIcon
Creates a new themed icon for @iconname.
Return
a new #GThemedIcon.
Parameters
iconname
a string containing an icon name.
Creates a new themed icon for @iconnames.
Return
a new #GThemedIcon
Parameters
iconnames
an array of strings containing icon names.
len
the length of the @iconnames array, or -1 if @iconnames is null-terminated
constructor(pointer: <Error class: unknown class><<Error class: unknown class>>)