Here is a screen recording going through everything you need to know to start using League Mode!

If the background is GREEN, then shot tracking is ENABLED. If the background is RED, then shot tracking is DISABLED.

First, rap the lane to enable shot tracking. If you accidentally enable shot tracking, then you can tap the lane again to disable it!

Tracking will automatically be disabled again once you've either thrown a strike, or two shots (aka once a frame has been completed).