Using wrapper to use portal skin on all controls of a dnn module.
Only one main control of a registered module of a dnn can use portal skin whose key value is blank.
All others conrols uses the admin skin.
You can use a wrapper skin to apply portal skin on all controls regardles of its key value.
You only register one control which has as blank key on the dnn. This controls does the job to load the other controls based on key provided so called a wrapper.
