The recorded application mainly uses FingerDown events, so it is not very comprehensible what triggers an action. In the device's developper settings "show fingertips" is activated. This produces a circle at the touch position. When trigger is changed from FingerDown to FingerUp, FingerMotion tracks the position like a pointer until selection happens.
The mp4 file is created in square geometry to keep dimensions on orientation change of a smartphone device. Results -animated gif, video are quite different in size. The recorded app available in the parent directory is a visual assistive phone launcher.