LightIdent-Beacon recognition

LightIdent shall help sailors and other navigators to identifiy navigational light sequences at night.
The navigator activates the app and taps the light characteristic on the screen while he focuses on the beacon.
The app draws a graphic of the light pattern with a movable timeline to measure the cycle period.

Features:
*While recording the app is usable blindly and onehanded.
*Dark color theme to relax the eyes in the night.
*History shows the last recorded light sequences.

I'd be happy to receive experience reports and improvement proposals at cseapps@googlemail.com