A CC button is added to the toolbar. In a later version of the Journal, this button will also appear in the contextual selection toolbar, enabling children to set licenses for many objects at once.
The Primary palette for the CC button reveals that it is a "Creative Commons License", and indicates the currently selected license textually. The secondary palette contains toggle buttons which can be turned on/off to set the license. The textual license description updates dynamically as these buttons are toggled.
If wanted, additional licenses can be supported. Also, a link to creative commons is included in the palette for more information. (This isn't possible yet, but will be supported in later versions of Sugar.)