Unfortunately image callouts don't work yet. This means, the marking pictures aren't merged into the picture which is to explained. This would really be a nice feature when explaining graphical user interfaces. To work around this, it would be necessary to create such a merged picture by hand. See Figure 2.2, “A handmade callout picture” for a sample picture.

	Where does it point to?
	This also point to nowhere

Figure 2.2. A handmade callout picture