I immediately found some bugs in update 4. And they are quite easy to occur and quite serious. So I have to make new update today. Other than bug fixes, I also fixed long click vibration logic to make it more reasonable. I also brought back the classic square trigger icon with HD quality this time. I feel quite impressed after seeing all graphics upgrading to HD quality. The screenshot doesn’t show the difference a lot. But you will see the difference once you install ST2 on your phone and see with your eyes.