a gdk.RGBA representing the foreground color of the icon
a gdk.RGBA representing the warning color of the icon or NULL to use the default color
a gdk.RGBA representing the warning color of the icon or NULL to use the default color
a gdk.RGBA representing the error color of the icon or NULL to use the default color (allow-none)
optional gio.Cancellable object, NULL to ignore
a GAsyncReadyCallback to call when the request is satisfied
the data to pass to callback function
3.8
Asynchronously load, render and scale a symbolic icon previously looked up from the icon theme using IconTheme.lookupIcon.
For more details, see IconInfo.loadSymbolic which is the synchronous version of this call.