Registers @alias as another name for @target. So calling gtk_icon_size_from_name() with @alias as argument will return @target.
an alias for @target
an existing icon size (#GtkIconSize)
Deprecated: Use #GtkIconTheme instead.
See Implementation
Registers @alias as another name for @target. So calling gtk_icon_size_from_name() with @alias as argument will return @target.