<permission-tree>

<permission-tree android:icon="drawable resource"
                 android:label="string resource" ]
                 android:name="string" />

com.example.project.taxes.CALCULATE
com.example.project.taxes.deductions.STORE_RECEIPTS
com.example.project.taxes.deductions.ACCESS_RECORDS

This element doesn't declare a permission itself, only a namespace in which permissions can be placed. For more information about declaring permissions, see the <permission> element.

android:icon

An icon representing all the permissions in the tree. This attribute must be set as a reference to a drawable resource containing the image definition.

android:label

A user-readable name for the group. As a convenience, the label can be directly set as a raw string during development. However, when the application is ready to be published, set it as a reference to a string resource, so that it can be localized like other strings in the user interface.

android:name

The name at the base of the permission tree. It serves as a prefix to all permission names in the tree. Use Java-style scoping so that the name is unique. The name must have more than two period-separated segments in its path. For example, com.example.base is OK, but com.example isn't.