-void RrImageAddPicture(RrImage *im, RrPixel32 *data, gint w, gint h);
+void RrImageAddPicture(RrImage *im, const RrPixel32 *data, gint w, gint h);
+/*! Adds a picture by name, from a file on disk.
+ @name Can be a full path to an image, or it can be a name as per the
+ freedesktop.org icon spec. */
+gboolean RrImageAddPictureName(RrImage *im, const gchar *name);