I don't know how to describe this leader skill. This is a bug, please report it. (up_type: 1, type: 110)
If there are only Cool idols on the team: Raises the Dance appeal of all cards by 100%, and the Visual appeal of all cards by 100% (when playing a Cool-type song).
If there are only Passion idols on the team: Raises the Vocal appeal of all cards by 100%, and the Dance appeal of all cards by 100% (when playing a Passion-type song).
Raises the Visual appeal of all members by 100% when there are Cute, Cool, and Passion idols on the team.