Lower down star rating for out-of-bound star rating charts

Simulator-oriented Taiko games have some support about limit-break star rating. Higher density and notes (like 300+ bpm charts) reflect star rating but with a twist.

For example, if there are some difficulties that have crossed the limit, like 6.../8.../9.../11... (left to right is Easy to Extreme...) and so on, lower down to 5/7/8/10 to adhere the standard star rating of each difficulty.